Dense, fudgy, and made with no flour at all. This flourless chocolate cake takes just 10 keto-friendly ingredients. A rich, sugar-free dessert at 2.9g net carbs, naturally gluten-free and nut-free.
I’ve made a lot of chocolate desserts for this site, from low calorie brownies to flourless cookies to keto chocolate mousse. This flourless chocolate cake is the one I come back to when I want something that feels special. It’s dense and rich like a torte, with an intense chocolate flavor that doesn’t need any flour to hold it together.
No almond flour, no coconut flour, no oat flour. The structure comes entirely from eggs, butter, and melted chocolate. I tested this more times than I’d like to admit, and the texture lands right between a brownie and a mousse cake. Fudgy in the center with edges that set up firm enough to slice cleanly. If you love chocolate desserts without the flour drama, I also have a keto sauerkraut chocolate cake that sounds strange but works.
If you’re keto and dealing with nut allergies or gluten sensitivity, this is one of the few desserts that works without any workarounds. It’s naturally gluten-free and nut-free because there’s no flour in it at all. I keep the ingredient list short: sugar-free chocolate chips, butter, salt, eggs, a granulated sweetener, a brown sugar substitute, cocoa powder, and vanilla. That’s it.
The key to getting the right texture is not overbaking. I pull mine out when the top is just set but the center still has a slight wobble. After 20 minutes at room temperature and 2 hours in the fridge, it firms up into that fudgy, almost truffle-like center that makes people think you spent all day on it. The whole process is one bowl of melted chocolate, one bowl of whipped eggs, fold them together, and bake.
A lot of readers have asked about making this dairy-free. I tested it with refined coconut oil in place of butter, and it works. The texture is slightly denser and the chocolate flavor comes through even stronger without the butter smoothing it out. Use refined coconut oil so you don’t get any coconut taste competing with the chocolate.
I serve this at dinner parties and holidays, and I don’t announce that it’s sugar-free. People eat it, enjoy it, and never ask what makes it different. My husband actually prefers this to the regular version because the chocolate flavor is more concentrated without flour absorbing it. When I tell people there’s no flour in it at all, that’s usually the part that surprises them.
I partnered with Earth Echo for this recipe. Using their Cacao Bliss along with the cocoa powder adds a hint of cinnamon and depth from superfoods like turmeric and Himalayan salt. I like what it does to the flavor, but the cake is just as good with straight cocoa powder if you don’t have it.
Get 15% off your order of Cacao Bliss when you use my code KETOFOCUS.
My favorite toppings and frostings
This cake is rich enough to eat on its own, but I usually dress it up. Here are my go-to options.
Powdered sugar: I use sugar-free powdered sugar (erythritol monkfruit blend) and dust it on with a sieve. Simplest way to make the cake look finished.
Whipped cream: Fresh whipped cream with 3/4 cup heavy cream and 2 tablespoons of powdered sugar sweetener. I make this right before serving.
Chocolate ganache: Mix 1 cup melted chocolate with 1/2 cup heavy cream. Pour it over the top and let it set in the fridge. This turns the cake into something people will not believe is sugar-free.
Chocolate buttercream frosting: My sugar-free chocolate buttercream works great on this. Top with fresh raspberries or strawberries.
Ice cream: Warm the cake slice before serving and add a scoop. This is how my family eats it most of the time. If you want to go bigger, use this as the base layer for a keto ice cream cake.
Chocolate trifle: Layer slices with whipped cream and berries in a glass. I do this with leftover cake and it makes the whole thing feel new.
Tips for getting the texture right
Pull it early. I take mine out when the top is just barely set. It looks underdone, and that’s the point. The cake keeps setting as it cools. If you wait until it looks fully baked, you’ll end up with something dry and crumbly.
Use a springform pan. I’ve tried regular cake pans and getting this cake out in one piece is a nightmare. The springform releases clean every time. An 8 or 9-inch works.
Melt chocolate carefully. I microwave in 30 to 45-second bursts, stirring between each one. If you go too long, the chocolate seizes up into lumps and you have to start over. Patience here saves the whole cake.
How to store and freeze this cake
I keep leftovers wrapped tightly in plastic wrap. On the counter, this stays good for up to 3 days as long as your kitchen is cool. In the fridge, it lasts 3 to 4 days. I actually prefer the texture at room temperature (it’s fudgier and less firm), so I only refrigerate if I need it to last longer.
This cake freezes well for up to a month. I slice it first, wrap each slice individually in plastic wrap, then store them all in a freezer bag. That way I can pull out one slice at a time without thawing the whole thing. To serve, let a frozen slice sit at room temperature for about 20 minutes or warm it in the microwave for 15 seconds.
If you’re making this ahead for a dinner party, I bake it the day before and keep it in the fridge overnight. The texture actually improves after sitting because it has more time to fully set. Add any toppings right before serving. I’ve also crumbled leftover slices into my mini keto cheesecakes for a chocolate swirl layer.
How to make flourless chocolate cake
What goes into this cake
Sugar-free chocolate: This is where most of the flavor comes from. I use sugar-free chocolate chips, but 90% dark chocolate or bakers chocolate works too. If you go that route, taste the batter before baking because you'll probably need more sweetener.
Butter: Butter gives the cake its moisture and richness. I tried making this without it once. Dry and chalky. Don't skip it.
Eggs: The eggs do all the structural work since there's no flour. They hold everything together. You need all 6.
Sweeteners: I use two: a granulated sweetener like erythritol or monk fruit blend, plus a brown sugar substitute. The brown sugar adds a slight caramel note that rounds out the chocolate. I've also tested this with allulose, and it keeps the texture fudgier because it doesn't crystallize the way erythritol can when chilled.
Cocoa powder: Cocoa acts like a flour in this recipe, absorbing moisture from the eggs and melted butter. I use 100% unsweetened for the lowest carb count.
Preheat oven to 325 degrees. Line the bottom of a 9-inch springform pan with a circle of parchment paper. Spray the edges with cooking spray. Set aside.
2
Melt chocolate
In a medium microwave safe bowl, add chocolate chips, butter and salt. Microwave at 45 second intervals until melted, stirring in between. Once melted, set aside.
For this step
Chocolate chips
Butter
Salt
3
Beat eggs with sweetener
To a large bowl, add 6 eggs, sugar free granulated sweetener and brown sugar sweetener. Beat with an electric mixer until fluffy.
For this step
Eggs
Sugar free granulated sweetener
Brown sugar substitute
4
Add remaining ingredients
Slowly stir in cocoa powder, Cacao Bliss (if using) and vanilla. Once combined, drizzle in melted chocolate mixture. Mix until combined.
For this step
Cocoa powder
Cacao Bliss, optional
Vanilla extract
5
Pour and bake
Pour cake batter into the prepared cake pan. Tap the cake pan on the counter a few times to release any trapped air bubbles. Bake at 325 degrees for about 50 minutes. Let cool at room temperature for about 20 minutes before transferring to the refrigerator to cool for 2 hours. Dust with powdered sugar and serve with whipped cream.
Nutrition
Per serving: 1 slice
Calories
353
Fat
33.8g
Protein
5.8g
Total carbs
15.8g
Fiber
12.9g
Net carbs
2.9g
Nutrition is an estimate calculated from the ingredients listed. Brands vary, so check labels if you track closely.
Frequently Asked Questions
How many net carbs per slice?
I cut this cake into 8 slices, and each slice comes in at 2.9 net carbs. I've tested it with Lily's chips and with ChocZero, and the count varies slightly between them. The cocoa powder and eggs are where most of the carbs come from. It's one of my lowest carb chocolate desserts.
Why is my cake crumbly or dry?
Mine turned out dry the first time I made it because I left it in too long. The trick is to pull it out when the top is just set. If it looks fully baked in the oven, it's already overbaked. I also keep a shallow pan of water on the rack below. The steam helps keep the crumb moist throughout.
Is this cake gluten-free and nut-free?
Yes, both. I don't use any wheat flour, almond flour, hazelnut flour, or coconut flour in this recipe. There's nothing here that contains gluten or tree nuts. I originally developed it because I was getting so many requests for nut-free desserts, and this was the first one I felt really delivered on flavor.
Why does my cake sink in the middle?
I've had this happen when I opened the oven door too early. The cake needs consistent heat for the first 35 to 40 minutes. If you check it before that, the sudden temperature drop can cause the center to collapse. I also make sure my eggs are at room temperature before I start, which helps the batter set more evenly.
How do I know when it's done baking?
I check mine at 45 minutes. The top should look set and matte, not shiny. If you gently shake the pan, the center should have a slight wobble, almost like jello. That's exactly what you want. It firms up completely during the 2-hour cooling process in the fridge. If the center doesn't move at all when you shake the pan, it's overbaked.
Can I make this dairy-free?
I've tested this with refined coconut oil in place of butter using the same amount (1 cup). It works. The texture is slightly denser and the chocolate flavor comes through even stronger without butter smoothing it out. Use refined coconut oil, not virgin, so you don't get any coconut taste competing with the chocolate. Everything else in the recipe stays the same.
Can I use allulose instead of erythritol?
I've made this with allulose and the texture difference is real. Allulose stays smooth and fudgy even after chilling, while erythritol can develop a slightly grainy bite in the fridge. I prefer allulose in this cake for that reason. Use the same amount as the granulated sweetener, but taste the batter before baking since allulose is about 70% as sweet as sugar.
How long does this keep at room temperature?
I leave mine on the counter for up to 3 days when my kitchen stays below 75 degrees. I wrap it tightly in plastic wrap as soon as it's cooled. The texture is actually better at room temperature because it stays fudgier and softer than straight from the fridge. After day 3, I move any leftovers to the fridge where it keeps another 3 to 4 days.
What is the point of flourless chocolate cake?
Without flour to absorb moisture, the chocolate takes over. The texture lands dense and fudgy, closer to a torte or a truffle than a regular cake. Mine is also naturally gluten-free and nut-free, and it comes in at 2.9 net carbs per slice.
What is in a flourless chocolate cake?
Mine uses sugar free chocolate chips, butter, salt, 6 eggs, a granulated sweetener, a brown sugar substitute, unsweetened cocoa powder, vanilla extract, and an optional scoop of Cacao Bliss. The eggs do the structural work that flour normally handles, so the cake slices clean at 8 servings.
I’ve spent most of my time on keto pretty indifferent to the chocolate dessert swaps. They’re okay, but never quite land. Made this on a Sunday with low expectations and I’m not entirely sure what happened. The density is somewhere between a cake and a truffle, which is what keeps pulling me back. Three batches in a month was not the plan.
353 calories surprised me for something this dense. On bake time: pull at 35, not 40. Center looks undone. That’s fine, it sets as it cools and that’s how you get the fudge texture. Mine went to 40 the first time, still okay but more set than ideal. Six eggs and no flour means the structure’s fragile, so don’t rush any stage. Brown sweetener matters more than the recipe lets on. Get one with real molasses depth or the cocoa just goes flat.
2.9 net carbs and I’ve made this six times now, mostly because I kept thinking my tracker was wrong. Dense, fudgy, exactly what it says. One thing the recipe doesn’t emphasize enough: the brown sugar substitute matters. Cheap generics flatten the flavor and the bitterness comes through. Lakanto brown is worth the extra cost here.
Still thinking about the flourless chocolate cake at my mom’s birthday restaurant, the one she ordered every single year. One bite of this and I was right back there, same fudgy density when the fork goes in. Missed this more than I knew.
That fudgy density took the most testing to get right. I wanted the fork to sink into it exactly like that, not cut through something cakey. Glad it brought you back to her birthday table, Dana.
Make this every couple weeks and the Cacao Bliss is not optional anymore. Skipped it the first few batches, added it on a whim once, and the chocolate depth shifted completely. Not the same cake without it.
Tried six other flourless chocolate cake recipes and they all went cakey in the middle. Something about the cocoa ratio here (plus the brown sugar sub) keeps it fudgy all the way through. Other versions don’t even come close.
You landed on exactly what took me the longest to sort out. I went through probably a dozen versions before realizing the cocoa ratio is what controls fudginess more than anything else. The brown sugar sub keeps it from going dry once it cools.
Room temp eggs. Non-negotiable. Cold ones hit the melted chocolate and seize it up fast. Room temp slides right in and the batter emulsifies in about two minutes. Small thing, total difference.
Yep. I set mine out when I start melting the butter so they’re ready by the time the chocolate cools slightly. Cold eggs into warm chocolate is a mess.
I had no business experimenting but added a teaspoon of espresso powder because I’d seen it mentioned somewhere. Figured it couldn’t hurt. It changed everything, though. The chocolate got this almost overwhelming depth I wasn’t ready for, like you actually have to stop between bites. Used Lily’s chips because that’s what I had, and honestly between those and the espresso it tasted like something you’d pay too much for at a nice restaurant. Also my first time with a springform pan. I was terrified of the release but it slid right out, no drama at all. Just stood there looking at it for a second. Six ingredients. 2.9 net carbs per slice. That’s insane. Doubling this for my friend’s birthday in June.
That springform moment gets me every time. For June, I’d do two separate pans instead of one bigger one – increasing the depth messes with the bake time in ways that are hard to dial in.
Let it cool completely before releasing the springform (first time I rushed it and the center sank). The tapping step actually matters too, gets rid of air pockets and the top sets way more evenly. Small things that made a real difference on my second try.
Rushing the springform is the fastest way to lose the center, learned that one the hard way. The tapping step honestly surprised me too. I almost took it out of the instructions before realizing how much it helped.
Made this for my daughter’s birthday dinner (she’s the one who pulled me into keto two years ago, the tables have fully turned). She took a bite, got quiet for a second, and said it reminded her of the chocolate lava cake from the restaurant we used to go to every year. That’s not nothing. I used Lily’s dark chips, skipped the Cacao Bliss, pulled it out around 28 minutes when the edges had set but the center still had some give. Four stars only because my oven runs hot and I haven’t nailed the timing yet, but the texture was exactly what I wanted.
Added a teaspoon of instant espresso to the batter on a whim and the chocolate came through so much deeper. Wasn’t expecting that big a difference, but the cocoa powder and chips with that little bit of espresso is something else. Making it this way from now on.
Had no idea what I was doing when I started this. First keto dessert I’ve ever tried to make and I picked it because six ingredients felt impossible to mess up. The moment the chocolate chips and butter came out of the microwave all glossy and melted together, something clicked. The fudgy texture when it came out of the oven is not what I expected from something with no flour. Making it again this weekend.
That glossy chocolate-butter moment is my favorite part of this one. When you make it again, let it sit at room temp for a couple hours before slicing. Fudgier than cold, every time.
I browned the butter before adding the chocolate chips, mostly out of habit (I do it with almost anything I bake). The difference here was more noticeable than I expected. The finished cake had this deeper, slightly nutty undertone running under all that cocoa, something I kept trying to place the first time I tasted it. Not a dramatic shift, but it rounds the whole thing out, makes it feel more complex than six ingredients should. I used Lily’s 55% dark chips and between those and the brown sugar substitute, there was just enough bittersweet edge without tipping too rich. Texture was dense and fudgy as described, but chilling it overnight made the slices cleaner and honestly brought the chocolate forward in a way warm slices don’t. Made it twice with this tweak. Not skipping the browning step again.
Browned butter in this one is subtle but it’s there. Lily’s 55% is already on the bitter edge so the nuttiness balances it out rather than competing. The overnight thing is real, I keep meaning to add that to the notes.
My 9-year-old asked if it came from a bakery. He meant the chocolate, not my technique, but I’ll take it. First time using a springform pan and the slices came out way cleaner than anything I’ve made before.
Tip for anyone who over-melts their chocolate like I did the first time: pull the bowl out when the chips are still about halfway solid and stir from there. Residual heat finishes it and you skip the grainy texture thing entirely. I also swapped in Lily’s 70% dark chips instead of semi-sweet and the bitterness against the cocoa powder is SO much better. Richer, more intense. Already planning to add the Cacao Bliss next batch to see how far I can push it.
The 70% dark really does work better here. More bitterness against the cocoa powder, less sweet-forward. And Cacao Bliss – I list it as optional but I do the full scoop every time now.
My husband never eats dessert, so I just set this out without mentioning it. He came back asking if I’d written down what I did, because the texture was nothing like any keto dessert he’d had.
My 9-year-old found this on the counter before I’d even told anyone what it was, cut himself a slice, ate the whole thing, and came back to ask if we had more. He’s not keto and has vetoed basically every dessert I’ve made since January. When he asked what was in it, I told him chocolate chips and eggs, and he looked at me like I was lying. The texture is different from any keto cake I’ve made before, that fudgy density that holds together when you cut it. I used Lily’s chips and it came out rich enough that I had to stop myself at one slice. Making this again for Easter and not announcing it’s keto to anyone.
Brought this to a dinner party last weekend and it looked like I’d ordered it from a bakery. Two people announced they don’t eat ‘diet food’ before dessert came out. I watched one of them cut a second slice when he thought no one was looking, and when someone noticed the ‘2.9g net carbs’ on the container, the whole table went quiet. This is my go-to whenever I need to bring a dessert somewhere.
That man cutting a second slice when he thought no one was watching is the best review this cake has ever gotten. The table going quiet at 2.9g is exactly what happens.
I kept skipping this one because I figured without any flour it would just fall apart, or taste weirdly eggy. Made it Sunday on kind of a whim and the density of it genuinely stopped me. It’s not trying to be cake (it’s more like the best fudge you’ve ever had, baked into a slice). Every other keto chocolate thing I’ve tried tastes like a consolation prize. This one doesn’t.
The fudge thing is exactly why I built it the way I did. None of the flour to dilute it. If you want to go further, flaky salt on top right out of the oven.
