Crispy outside, tender in the center — these keto crab cakes start with fresh lump crab meat, mayo, stone ground mustard, and a few seasonings. Almond flour stands in for breadcrumbs, and it's just 0.5g net carbs.
I kept these simple on purpose. That's the Maryland-style approach: let the sweet, delicate flavor of fresh lump crab meat do the talking. A good mayo (I use Best Foods or Dukes), stone ground mustard, and a few seasonings add just enough creaminess and tang without burying the crab. The whole thing comes together in about 10 minutes, which makes them one of the fastest low carb appetizers I put out.
What makes these low carb?
Instead of breadcrumbs, I use almond flour to bind everything together and keep them holding their shape in the pan. It gives the outside a light crunch, so they feel just like the traditional version. If you already stock almond flour for things like almond flour crackers, you have the main binder in your pantry.
I've fried hundreds of these at this point, and oil temperature matters more than anything. I wait until the surface is slick and glistening before the first one goes in. Too early and you get pale, soggy sides. Too hot and the coating burns before the inside warms through. Medium to medium-high heat, and watch the edges. When they go golden, flip.
One thing I get asked about a lot: pork rinds work as a 1:1 substitute for the almond flour if you need a nut-free option. Same 3 tablespoons, crushed fine. The only catch is pork rinds add more salt, so the Old Bay will taste stronger. I always taste the mix before forming them when I go that route. If you want to make your own, my homemade pork rinds recipe is worth the effort.
If you're making these ahead of time, refrigerate the formed patties for 30 minutes before frying. The cold firms up the binding so they hold together better in the pan. I do this whenever I'm prepping for a party, and the difference in how well they flip is noticeable.
These work as more than just an appetizer. With 8.5g of protein per serving, I plate two or three alongside a big salad for a keto dinner. For a party spread, I set out a platter with stuffed mushrooms and salmon cucumber bites alongside these, and they always go first.
Which crab meat to buy
I prefer fresh lump crab meat because the flavor is noticeably sweeter and cleaner, and the chunks hold their shape when you fold them into the mixture. At the seafood counter, you’ll see a few grades. Jumbo lump is the premium pick (large, intact pieces from the body), but it’s pricey. Backfin is my go-to for these because it’s a mix of broken lump and flake that binds well and still tastes like real crab, at about half the price.
Canned works fine if that’s what you have. I drain it well and pick through for shells and cartilage. I use double the volume compared to fresh since canned packs down more. The extra moisture means you need another tablespoon or two of almond flour, otherwise the mixture gets too sloppy to hold together in the pan. These are naturally gluten free and keto since there’s no flour or breadcrumb coating, just the almond flour binder.
Sauces I make for these
I make a quick remoulade by mixing 1/4 cup mayo, 1 tablespoon Dijon mustard, 1 teaspoon chopped capers, a squeeze of lemon juice, a dash of hot sauce, and a pinch of Old Bay. Takes about 2 minutes and tastes better than anything from a jar. I keep it in the fridge for up to a week.
When I want something different, a quick sriracha mayo with a squeeze of lime gives these a completely different feel. Just mix 2 tablespoons of mayo with a teaspoon of sriracha and some fresh lime juice. For a party spread, I’ll set out two or three options and let people choose. I’ve served these alongside bacon jalapeno popper dip as a shared dipping option, and people went for it. Avocado deviled eggs round out the spread nicely.
How to store leftovers
Cooked leftovers keep in the fridge for up to 3 days in an airtight container. I reheat them in a skillet over medium heat for about 2 minutes per side to get the crispiness back. The microwave works in a pinch, but you lose that crispy exterior.
If I’m making these ahead for a party, I form the patties and refrigerate them uncooked for up to 24 hours. That chill time before frying actually helps them hold together better in the pan, so it’s a win either way.
In a medium bowl, combine mayonnaise, parsley, green onions, lemon juice, Old Bay Seasoning, mustard, lemon zest and Worcestershire.
For this step
3 tablespoons mayonnaise
1 tablespoon chopped fresh parsley
1 tablespoon thinly sliced green onions
1/2 tablespoon fresh lemon juice
1/2 tablespoon Old Bay Seasoning
1 teaspoon grain mustard
1 teaspoon lemon zest
1/2 teaspoon Worcestershire sauce
2
You're crabby
Add the lump crab meat to the mayo mixture and gently combine. Keep the pieces in chunks since more ingredients still need to go in. If the crab is juicy, add about ½ tbsp extra mayo to help it bind into cakes. Don’t add too much or you’ll need more almond flour to compensate.
For this step
8 oz lump crab meat, fresh or canned
3
Add almond flour
Add in the almond flour and mix gently to just combine making sure not to shred the crab meat too much.
For this step
3-4 tablespoons almond flour
4
Form the cakes
Form the mixture into 6 cakes, about 2 oz (about 2 tbsp) for each cake and place them on a parchment lined baking sheet.
5
Fry them
Heat the olive oil in a nonstick pan over medium to medium-high heat. Fry in batches of 2-3 cakes, about 2-3 minutes per side, until golden brown. Adjust the heat as needed so they cook through without burning. Set finished cakes on a lined baking sheet to keep warm. Serve immediately.
For this step
2 tablespoons olive oil
Nutrition
Per serving: 1 crab cake
Calories
148
Fat
12.2g
Protein
8.5g
Total carbs
1g
Fiber
0.5g
Net carbs
0.5g
Nutrition is an estimate calculated from the ingredients listed. Brands vary, so check labels if you track closely.
Frequently Asked Questions
Can I bake these instead of pan-frying?
I've done both. Preheat your oven to 425F, set the patties on a parchment-lined baking sheet, and brush the tops with a little olive oil. 12-15 minutes total, flipping once at the halfway mark. They won't get quite as golden as pan-fried, but the edges still crisp up and the inside stays tender. I use this method when I'm making a bigger batch and don't want to stand over the stove frying in rounds.
Can I make these in an air fryer?
I've done it. 375F for 8 minutes, flipping halfway through. I spray the basket with avocado oil first and give them space (3 at a time max). The outside still crisps up and the inside stays tender, though they come out a little less golden than pan-fried. If you already use your air fryer for things like air fryer wings, same concept. I still prefer the pan for that deep golden sear, but the air fryer saves you from standing over the stove.
Can I use pork rinds instead of almond flour?
I've tested it and they work. Same 3 tablespoons, crushed fine. The texture is slightly different (a little more airy than almond flour) but they bind and crisp the same way. One thing I noticed: pork rinds add extra salt, so the Old Bay comes through stronger. I always taste the mixture before forming patties when I go that route.
Can I use coconut flour instead of almond flour?
I've tried it and the ratio is different. Coconut flour absorbs way more moisture, so you only need about 1 tablespoon where I'd use 3 of almond flour. Start there and add a half teaspoon at a time if the mix still feels too wet. The texture comes out a little denser (almost more like a traditional crab cake, actually) but they hold together and fry up the same way.
Are these Whole30 or paleo?
They qualify for both as written. No dairy, no grains, no added sugar. The mayo is the only ingredient to watch. Most store brands add soybean oil or sugar, so I use an avocado oil mayo when I'm cooking Whole30. Same taste, clean label. They're also keto and dairy free, which makes them one of the most diet-flexible appetizers on my site. I serve them at gatherings alongside things like keto nachos and nobody even notices they're diet-friendly.
How do I store and freeze these?
Cooked, they last about 3 days in the fridge. I reheat in a skillet (2 minutes per side) to bring back the crispiness. For freezing, I go with uncooked patties. I form them, set them on a parchment-lined sheet in the freezer for about an hour, then transfer to a freezer bag. They keep for up to 3 months. When I'm ready, I fry them straight from frozen and add about a minute per side. The texture holds up well.
My cakes keep falling apart. How do I fix them?
I've had this happen, and it usually means too much moisture in the crab. If the mix feels too wet when you scoop it, add another tablespoon of almond flour and gently work it in with your hands. Refrigerating the formed patties for 30 minutes before frying also makes a big difference. The cold firms everything up so they flip cleanly without crumbling.
What's the best dipping sauce for these?
My homemade remoulade is first choice, every time (I have the recipe in the post above). But I also love a quick sriracha mayo (2 tablespoons mayo, 1 teaspoon sriracha, squeeze of lime). For something lighter, just a lemon wedge and fresh parsley lets the crab flavor come through without competing. I've also done a garlic aioli that worked really well when I wanted something richer.
Debated whether to bring these to a dinner party or stick with something I’d tested a dozen times. They held their crust and shape after sitting in a low oven for 20 minutes before serving, which was the real test. The one person there who orders crab cakes every time she sees them on a menu came back for two more without a word, just grabbed them. Four stars because I’d go heavier on the Old Bay for a bigger crowd, but that’s an easy fix.
Been working through a double batch since Sunday and figured out the reheating situation. Air fryer at 350 for four minutes brings them back crispy. Pan reheating just softens the outside. One thing that caught me off guard: at two cakes per sitting, the whole recipe is basically three meals. Good to know before you commit to it as a weekly prep thing.
Made these last week and they were great, but two of my six fell apart on the flip. Not sure what went wrong. I waited for the edges to brown, kept the heat at medium, and used a stainless pan instead of nonstick since that’s all I had. Does pan type actually affect how they hold together, or does almond flour just need more time to firm up than I gave it? Is there something besides edge color to watch for before flipping?
Hi Sonia, the stainless probably isn’t your problem. Moisture is. I chill the formed cakes for 20 minutes before they hit the oil, and if the mix feels wet when you scoop it, work in another tablespoon of almond flour. For the flip, nudge one with the spatula first: if it slides, it’s ready. If it grabs, give it another minute.
Pan fits four but three is the real answer. Crowding drops the oil temp enough that they just sit there absorbing instead of crisping, and almond flour can’t recover the way a thicker breading would. More space than seems necessary.
Oil temp is everything with almond flour. I’ve tried four and they just sat there sweating instead of crisping (recovery doesn’t happen the way it does with panko). Three max, even if the pan looks like it has room.
I’d written off crab cakes when I went keto. Figured the almond flour swap would be a downgrade and just stopped ordering them. I was wrong. The Old Bay and stone ground mustard taste exactly like I remember, and the crust actually gets crispy. I’ve checked the macros three times because 0.5g net carbs per serving just doesn’t look right. Three batches in now. Chilling them 20 minutes before frying made a difference (the first batch fell apart on the flip; these didn’t). Made them for dinner last week. First crab cake in almost two years that didn’t feel like settling.
Not worth it for exactly that reason. Imitation is mostly pollock and starch, so the texture goes mushy and the net carbs climb for no payoff. Lump is what gives these the tender center.
I freeze them uncooked. Shape the patties, lay them flat on parchment, freeze until solid, then transfer to a bag. Cook from frozen and just add a couple minutes per side.
Lemon zest in crab cakes is not something I knew I was missing until this recipe. Made them for a cookout last weekend and kept comparing them to restaurant versions I used to order, and it finally clicked, every other one I’d had tasted flat in a way I couldn’t name. This one has this citrus thing from the zest and fresh juice together that makes it taste like an actual crab cake and not just something I’m eating to stay on track. These are freaking better than what I’ve ordered out, and I did not see that coming when I bought lump crab meat for the first time in my life. One thing: ran the oil too hot on my first batch and they went dark fast. Still fine, but medium heat and patience is the move. Four stars, would be five if I hadn’t rushed the pan.
Lemon zest is exactly where I kept going back to adjust the ratio, took a few rounds before it tasted like a real crab cake instead of just something close. Once you’ve used lump, the other stuff is pretty hard to go back to.
Wasn’t sure almond flour would hold these together like breadcrumbs do, but they fried up firm and didn’t fall apart once. The Old Bay comes through exactly like you’d want.
The mayo does more of the binding work than people expect. Almond flour is really just texture and crust. If you ever make a batch that feels loose before frying, 20 minutes in the fridge firms them right up.
My grandma made these every summer. Genuinely thought that was behind me when I went keto. The Old Bay smell hit me hard. Making these every spring from now on.
I’ve made crab cakes from scratch before and always figured the breadcrumbs were doing structural work that nothing else could replicate (they bind, they give texture, the whole thing). Made these mostly to prove a point to myself. The almond flour completely surprised me, the outside got this real sear, golden and almost crackling at the edges, and the lump crab stayed in actual big chunks instead of the mush you get from the cheap imitation versions. Three batches in now and I’m still not fully over it.
Batch four this spring and I keep forgetting to double it. The almond flour crust gets genuinely crispy in a way I did not think was possible without breadcrumbs, and the crab stays in real chunks the way it should.
Next time double it and freeze half raw. I set them on parchment, freeze until solid, then transfer to a bag. 20 minutes on the counter and they’re ready to go.
I’ve made traditional crab cakes plenty of times, but this is my first try with almond flour as the binder. Do they hold together as well, or do I need to pack them more firmly before frying?
They hold. The 3-4 tablespoon range in the recipe matters though – if your mix feels loose when you scoop, go with 4. I chill mine for about 20 minutes before they hit the pan and that does more than packing tightly.
Third time making these. Swapped the stone ground mustard for dijon and the flavor is sharper, more upfront. Keeps the same crisp outside, which is what I care about.
Mine kept falling apart on the flip until I let them chill in the fridge for 20 minutes before frying. The flavor is there (the stone ground mustard adds something I wasn’t expecting), but I do think a note about chilling would save people some frustration.
Made these for Sunday dinner and my 9-year-old, who has never willingly touched seafood in his life, ate two before I even sat down. I think it’s the Old Bay and the way the almond flour crisps up outside so it doesn’t taste ‘fishy’ to him. Now he’s asking when we’re having ‘those crunchy crab things’ again. Not a sentence I ever expected to hear.
‘Those crunchy crab things’ – keeping that. The Old Bay and the almond flour crust hit before the crab does. That’s usually how the seafood skeptics get turned.
If your cakes keep falling apart, try chilling them for 20 minutes before frying. The almond flour needs time to absorb everything and firm up. Made all the difference.
These came out really well and I’m genuinely impressed with how the almond flour held everything together without making them dense or grainy. The Old Bay with the lemon zest is such a nice combination, bright and savory at the same time. I’ve been searching for a crab cake recipe that didn’t feel like a compromise, and this one mostly delivers. My one note is that I’d probably pull back the mustard just slightly next time, maybe a touch less stone grain, because it was competing a bit with the crab flavor for me rather than just backing it up. The frying instructions were spot on though, medium to medium-high heat in batches gave me a really good golden crust without them falling apart. At half a gram of net carbs these are genuinely something I’ll keep coming back to, just with a small mustard adjustment on my end.
My daughter has a tree nut allergy so the almond flour is out. I’ve seen cassava flour work as a binder in other recipes (not strict keto, I know, but she’s not keto anyway), though I’m not sure it would hold these together since the mayo seems to be doing most of the binding work. Any nut-free options that would still get a crispy outside?
Pork rinds work here. Crush them small, 3 tablespoons, and they hold and crisp the same way. Cassava I haven’t tried in these but I’d expect gummy results. Pull back on the Old Bay with pork rinds though, they’re already salty.
Made these last weekend and they tasted great, but a couple fell apart when I went to flip them. I used 3 tablespoons of almond flour (the lower end of the range), not sure if that’s the culprit or if I just handled them wrong. The oil was hot and I waited until the bottoms were golden before flipping, so I don’t think I rushed it. Got 5 cakes instead of 6, so they ran a bit big. Would 4 tablespoons help them hold together, or is there something else I’m missing?
Yeah, 4 tablespoons should help. The size thing too though. Bigger patties crack through when you flip, and 5 instead of 6 is noticeably heavier. Try both at once.
Fourth time making these and I finally added an extra tablespoon of almond flour because the cakes kept falling apart on me. They held together through the whole flip and got way more golden on the outside. Wish I’d done that from the start.
I’ve made crab cakes that fall apart in the pan more times than I want to admit, so before frying these I put the formed cakes in the fridge for about 20 minutes first. They held together cleanly, and the crust came out evenly golden instead of patchy and uneven like usual. I also added an extra half teaspoon of lemon zest because I had a lemon sitting there anyway, and the brightness it adds cuts right through the mayo in a way that makes the whole thing feel lighter. The Old Bay level is just right (I almost always add more to things, left it as written here, and glad I did). Made a double batch and it was the right call. These are going into the spring dinner rotation.
Making these for my sister next week and she can’t have tree nuts, so almond flour is out. Would crushed pork rinds hold together as well, or would they fall apart when I flip them?
Pork rinds work. Crush them fine, same 3 tablespoons. They hold together on the flip, just a little more airy than almond flour. Only thing to watch: they’re salty, so hold off on extra salt until you taste the mix.
Made these for Sunday dinner and my husband kept asking what the breading was. He’s been skeptical of almond flour in everything, so watching him go back for a third one was answer enough.
Ha, best possible outcome. Almond flour basically disappears in this one – the Old Bay and stone ground mustard carry everything, so all he tasted was crab.
My husband is allergic to almonds, so almond flour is literally the only thing keeping him from these. Would crushed pork rinds work as a binder, or would that mess up the texture?
Pork rinds work, just crush them fine. Same 3 tablespoons. They’ll add a bit more salt so the Old Bay might taste stronger, worth tasting the mix before you form the cakes.
