My keto chocolate trifle stacks silky layers of boxed chocolate cake, vanilla pudding, and chocolate whipped cream at 5.5g net carbs per serving. I bring it to every potluck because nobody can tell it's sugar free.
I started making this for summer cookouts because I wanted something impressive that wouldn’t take all afternoon. Turns out, layering chocolate cake with pudding and whipped cream in a glass bowl does all the visual heavy lifting for you. The layers look stunning, and the whole thing comes together in about 30 minutes thanks to boxed sugar-free cake mix.
The key to this keto trifle is the pudding. I make it intentionally thin, using more nut milk and less cream than you’d expect, so it soaks into the cake layers as it chills. By the next morning, the cake has absorbed all that vanilla pudding flavor and gone from spongy to almost custard-like. Most recipes just say the pudding “will be runny” and leave it at that. I thin it on purpose because the soak-through is what makes this dessert work.
For the cake layer, I use Lakanto Chocolate Cake Mix baked on a quarter sheet pan at 375°F for about 10 minutes. The thin bake gives you even, easy-to-cube pieces and means the cake holds its structure even after absorbing pudding overnight. Thicker almond flour cakes tend to crumble and fall apart in all that liquid. A regular cake pan works too. I crumble those pieces when layering, and crumbled cake actually looks great in individual cups. Just let the cake cool before you start cutting or crumbling. If you want a richer, fudgier base, cubed low calorie brownies work really well here. The brownie cubes hold together even better than cake once the pudding soaks in, just expect a denser bite overall.
The chocolate whipped cream pulls the whole thing together. Heavy cream, powdered sweetener, and unsweetened cocoa powder beaten to stiff peaks. I pipe it on with a large star tip because the swirls make the trifle look like it took way more effort than it did. The contrast between the white pudding layer and the dark chocolate cream is what makes people pull out their phones before eating. I’ve had friends ask if this came from a bakery, which is exactly the reaction I’m going for.
You can make one large trifle in a glass bowl or portion it into individual cups (mason jars, wine glasses, whatever you have). I like the individual cups when I’m tracking macros because there’s no guessing on portions. For a crowd, the big bowl is more dramatic. Either way, this is the sugar-free dessert that non-keto people actually finish, which is the real test. If you love layered desserts, my sugar-free banana pudding uses a similar technique, and my keto strawberry shortcake has that same cake-meets-cream thing going on.
Which boxed cake mix I use (and why it matters)
I’ve tested a few different boxed mixes for this low carb trifle, and my go-to is Lakanto Chocolate Cake Mix. It bakes up moist, holds together when you cube it, and doesn’t fall apart once the pudding soaks in. That last part matters more than you’d think.
Any sugar-free chocolate cake mix will work here. Just follow whatever the package says for ingredients and bake temp. If you can’t find Lakanto locally, Good Dee’s Devil Food Cake Mix is another solid option I’ve used. You can also skip the box entirely. My easy keto chocolate cake or even my keto sauerkraut chocolate cake make surprisingly good bases for layering.
Sugar-free pudding options for the filling
I’ve tried both major sugar-free pudding mixes, and here’s what I found. Sugar-free Jello Pudding is available everywhere and comes in flavors like cheesecake and white chocolate (both taste great layered with the cake). The ingredients aren’t the cleanest though, with maltodextrin, aspartame, and modified cornstarch.
Simply Delish is what I reach for when I can find it. Sweetened with erythritol and stevia, no junk ingredients. It comes in vanilla, chocolate, and strawberry. I use vanilla for this recipe, but I’ve also made a double-chocolate version with chocolate pudding that my family requests now.
How to store it (and why it's better the next day)
You can eat this right after assembling, but I actually prefer it the next day. The pudding soaks into the cake overnight, the flavors meld together, and the texture goes from layered to almost like a chocolate custard cake. That overnight transformation is what makes people think I spent hours on it.
Cover tightly with plastic wrap and refrigerate for up to 3-4 days. It holds up well because the thin pudding has already been absorbed by day two, so the cake doesn’t get waterlogged the way it would with a thicker filling. If you’re making individual cups, press plastic wrap right against the surface of the whipped cream to keep it from drying out.
How to make a chocolate trifle
I use three shortcut components to pull this together fast:
Bake a sugar-free chocolate cake from boxed mix. I bake mine on a quarter sheet pan at 375°F for about 10 minutes so it's thin enough to cube easily.
Make a thinned-out vanilla pudding with boxed sugar-free pudding mix, nut milk, and a splash of heavy cream. I keep it intentionally runny so the cake soaks it up.
Whip chocolate cream by beating heavy cream with powdered sweetener and cocoa powder until stiff peaks form.
Layer it all in a trifle dish (pudding, cake, cream, repeat) and refrigerate. It's even better after a few hours in the fridge.
Prepare chocolate cake batter according to the directions on the box. Bake as directed on the package.
For this step
keto chocolate cake mix
additional ingredients needed according to package
2
Cube cake
Once cake is done baking, remove it from the oven and allow it to cool for 5-10 minutes before cutting it into cubes. Set aside.
3
Make thinned out vanilla pudding
To a large bowl, combine sugar free pudding mix with 2 cups of nut milk and 1/3 cup of heavy whipping cream. Mix with an electric mixer over medium speed for 3-4 minutes until pudding mix is dissolved and mixture has thickened slightly. Set aside.
For this step
1 box sugar free pudding
2 cups nut milk
1/3 cup heavy whipping cream
4
Whip up the whipped cream
In a large bowl, beat heavy cream over medium speed using an electric mixer until frothy. Add sugar free sweetener and cocoa powder. Continue beating until stiff peaks form.
For this step
1 1/2 cups heavy whipping cream
3 tablespoons sugar free powdered sweetener
2 tablespoons cocoa powder
5
Assemble the trifle
To a trifle dish, pour about half of the pudding mixture to the bottom of the dish. Top with cubed or crumbled cake. Spread about half the whipped cream on top of the cake to form an even layer. Pour remaining pudding mixture on top of the whipped cream layer. Decorate the trifle with dollops of chocolate whipped cream piped with a piping bag. Refrigerate until serving.
Nutrition
Per serving: 3/4 cup
Calories
456
Fat
45.9g
Protein
8g
Total carbs
29.5g
Net carbs
5.5g
Nutrition is an estimate calculated from the ingredients listed. Brands vary, so check labels if you track closely.
Frequently Asked Questions
How far ahead can I assemble this trifle?
Up to two days ahead. My favorite is assembling it the night before so the pudding soaks into the cake overnight, but I've put it together a full two days before serving with great results.
What sweetener works best in the whipped cream?
I use powdered monk fruit or allulose for the whipped cream. Erythritol works fine for sweetness, but I've noticed it can leave a slight cooling sensation that's more obvious in cold desserts like this. Allulose dissolves the smoothest and gives you the closest texture to real sugar. Whatever you choose, make sure it's powdered, not granular, or you'll get a gritty texture.
Can I add fruit like raspberries or strawberries?
Fresh raspberries between the layers are my favorite add-in. The tartness cuts through the chocolate and pudding in a way that makes the whole thing feel lighter. I've also done sliced strawberries, which look beautiful pressed against the glass of a trifle bowl. I add the fruit when I assemble, not before, so it doesn't get mushy. If you love fruit and cake together, my keto strawberry cake is another favorite.
How do I keep the cake from getting soggy?
The thin pudding is intentional, but if you want firmer cake pieces, I have a few tricks. First, don't over-soak. I pour just enough pudding to coat each layer, not drown it. Second, the recipe card rests the cake 5-10 minutes before cubing, which works for the overnight soak; for firmer, more distinct pieces, let it cool completely first, since warm cake absorbs liquid faster. Third, if you're serving same-day, I assemble no more than 2-3 hours before. The overnight soak is my preference, but a shorter chill keeps the cake pieces more distinct.
Held off on this one because nut milk pudding sounds thin and watery. It’s not. Thickens up fine and you can’t taste the nut milk at all. The cocoa whipped cream made it for me.
Fatima, the soggy is the point. I make it the night before every time. The pudding soaks into the cake overnight and by day two it tastes like a completely different (better) dessert than if you served it fresh.
I’m on my sixth batch and the one thing I changed and kept is starting with a layer of cake instead of pudding on the bottom. Scoops much cleaner when serving, and the pudding soaks into the cake from above instead of turning the whole base mushy.
Two years of keto and trifle was the category I’d accepted as just over. The glass-dish presentation, the layering, it all seemed to need real ingredients to pull off. The thinned pudding is what makes this version hold, it absorbs into the cake cubes instead of pooling. The cocoa in the whipped cream does the rest. Five and a half net carbs, and I was wrong.
Portioned mine into individual mason jars instead of one big trifle dish, genuinely the better move for meal prep. Pudding sets cleaner, you’re not excavating the whole thing every time, and the layers hold up for days.
Made this four times now (it’s become my spring potluck staple) and on the third batch I tried letting it chill overnight instead of just a few hours. The pudding layers actually firm up and hold their shape when you scoop, way less runny. Four stars only because the thinned pudding step confused me the first time around, but once that clicked the whole thing came together.
Overnight is the move, Sam. The pudding soaks into the cake and by the next day it’s basically a different dessert. The thinned step is weird the first time, just trust it.
Made the pudding the night before and it thickened up way more than I expected. Layers actually held their shape when scooping. Worth the extra step if you want it to look like the photos.
I don’t stock boxed mixes, so I’ll be using my own keto chocolate cake. When you cube it, does it need to be on the sturdier side to hold up under the pudding layers, or does softer/fudgier work? I’ve made trifles where the cake turned to mush before it even hit the table.
Fudgier actually holds up better. A light, airy cake soaks through fast and that’s when you get mush. Dense and slightly underbaked is what you want here.
My cousin’s graduation party is in May and I’ve already claimed this trifle as my contribution. We’re expecting about 24 people, so I need to triple it. Before I start, two questions.nnFor the cake layer, do I bake three separate quarter sheet cakes and cube them all, or is there a bigger pan that works just as well? And when I triple the pudding, does the liquid ratio stay the same or should I cut back a little so the layers don’t get soggy? I’ve had trifle layers go weirdly thin before just from multiplying a pudding recipe straight across, so I really want to nail this one.
Three separate quarter sheet bakes. Depth matters for clean cubing and a bigger pan throws that off. On the pudding, don’t multiply the liquid straight. Pull it back about 10-15% and add more after mixing if you need it.
Used coconut milk instead of nut milk for the pudding layer. Extra fat made it set way thicker, so the cake cubes stayed put. Even after a full day in the fridge the layers held. Never happens with trifles.
My daughter scraped the dish clean, then asked if she could pack the rest for school lunch. She’s nine with strong dessert opinions, so yeah. Pretty sure it was the chocolate whipped cream layer.
I almost skipped this because ‘assembly’ sounded complicated, but cubing the cake takes two minutes and the layers looked like something from a bakery.
The chocolate whipped cream in this is genuinely outstanding. I kept tasting it straight from the bowl before I even got to the assembly. My one note: the pudding with nut milk stayed pretty loose even after chilling for two hours, and the layers got a bit muddy when I went to serve it. Four stars because the flavor is absolutely there, but I’d cut back the milk slightly next time to get cleaner definition between the layers.
Nut milk is the culprit there. It doesn’t set as firm with instant pudding, so you end up with looser layers no matter how long you chill it. Cutting back is right, or just go stingy with how much you pour per layer.
