Keto Creamy Crab Soup (FAST)

Quick and easy keto creamy crab soup. Easily make this delicious bisque with fresh crab or canned crab.

My favorite comforting, low-carb seafood stew, ready in only 15 minutes!

easy keto / low carb crab soup made with real crab or canned!
Old Bay seasoning is great with this soup

Can I have crab on the keto diet?

Is crab low carb and keto friendly? Yes.

One can of crab meat has no carbs! That’s right! None. Nada.

creamy crab soup with parmesan cheese on top
creamy keto crab soup with parmesan cheese on top

How do I make low carb creamy crab soup?

This low-carb and keto friendly crab bisque is so easy to make.

First, you’ll start with a roux-type of base for the soup.

I like to use almond flour and butter to begin. In many traditional soups, you’ll see a flour and butter base, but this one doesn’t have all those nasty carbs!

Next, add in your dairy: half and half, cream cheese, and heavy whipping cream.

Finally, add in the crab and seasonings to the mix.

whisking together crab bisque roux
whisking the soup

What seasonings can I add to crab soup?

I like to use dried chives, Old Bay Seasoning and Tony’s Creole seasoning.

If you don’t have Tony’s or chives, you may use fresh onions, onion powder, or garlic powder to substitute those ingredients.

Just give it a little taste-test to determine your preferences of flavor.

crab soup with Old Bay seasoning
Crab soup with Old Bay seasoning

Can I use canned crab to make crab soup/bisque?

I have to admit, I was really skeptical about using canned crab for this recipe.

However, it was all I had on hand.

To be perfectly honest, I wanted a fast crab soup that tasted like lobster bisque, but without all the fuss and long list of ingredients.

This soup is simple, yet full of flavor, just like lobster bisque.

creamy low carb crab chowder

Can I freeze crab soup?

I do not recommend freezing this soup because of all the dairy.

How long will seafood stew last in the fridge?

Crab soup will last up to 3 days in the refrigerator. If you’re unsure, just sniff and you’ll definitely know!

What are crab substitutions?

No crab? No problem! For this recipe, you may use imitation crab, canned or the real deal.

No crab? You can use canned chicken and peppers for a delicious creamy chicken pepper stew.

Leftover crab? Make a cajun seafood foil pack right in the oven!

creamy keto crab soup

Keto Creamy Crab Soup

Amber @ Low Carb Quick
Quick and easy keto creamy crab soup, made with fresh crab or canned crab.
4.62 from 55 votes
Prep Time 3 mins
Cook Time 15 mins
Total Time 18 mins
Course Appetizer, Main Course
Cuisine American
Servings 8
Calories 366 kcal



  • On medium-low heat, melt butter in a large pot. Add almond flour with cream cheese and whisk until incorporated.
  • Whisk in heavy whipping cream and half and half.
  • Add crab and remaining ingredients and cook on med-low until hot.
  • Serve with parmesan cheese, if desired.


Serving: 1cupCalories: 366kcalCarbohydrates: 5gProtein: 6gFat: 36gSaturated Fat: 22gPolyunsaturated Fat: 1gMonounsaturated Fat: 10gTrans Fat: 1gCholesterol: 127mgSodium: 217mgPotassium: 157mgFiber: 1gSugar: 1gVitamin A: 1316IUVitamin C: 2mgCalcium: 118mgIron: 1mg
Keyword bisque, crab, easy soup, keto, low carb, seafood, stew
Tried this recipe?Let us know how it was!

If you like this easy Keto crab soup, you’ll love:

This recipe was inspired by Martha Stewart’s shrimp Bisque.

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20 thoughts on “Keto Creamy Crab Soup (FAST)”

  1. Just finished a bowl and OMG, it was fantastic! This is the most simple recipe for such a great tasting soup. I had a container of lump crab that I was planning to make crab cakes with but came across this recipe and thought it seemed way to easy not to try it. This soup does not disappoint! It is noted that it makes 10 servings but I ate two ladles full as one serving so I am estimating this will be more like 5-6 servings. Thank you for the great recipe, I will definitely be making it again, an maybe even adding some extra seafood since it is nice and thick like a chowder.

  2. Hello! I only have heavy whipping cream so could I dilute that with water for the half and half? We don’t do any kind of milk since we are keto. I have everything else and can’t wait to make this! Thank you!

  3. This soup is delicious!! But I am VERY confused on the carb count? Every source I’ve looked into for the carb count says crab meat is very high in carbs?? This article says there’s 0 and I can’t find anywhere that agrees with that as much as I WANT it to be true!!??

    • Meats don’t generally have carbs in them. Some seafoods (like shrimp, clams, oysters, squid) have carbs, but they are very low in carbs still. Crab does not have carbs. You might be looking at imitation crab, which is definitely high in carbs.

  4. Nevermind my comment about the high carbs. I was using imitation and that’s the difference. Thank you for the delicious recipe!

  5. Looks great and am going to make it tonight and way…but, when I entered the recipe into my tracker as Serving 8(which is how it is on Pintrest and how it printed)
    The numbers came out as
    CARB 8
    CAL 399 ?

    • Hello Patty, I have ran this recipe through my ingredient calculator in my recipe plugin after updating again. It is showing 5 g. carbs and 366 calories for each of 8 total servings. I’m not sure why Pinterest is showing anything different, it must be pulling outdated data from the old servings. The plugin I use to calculate nutritional info is through Word Press Recipe Maker, which is the gold standard for food and content bloggers. Thank you for bringing this to my attention, I will be looking more closely at Pins to insure they are properly updated when I update a recipe.

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