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crab butter sauce on a platter with crab legs
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5 from 10 votes

Crab Butter Sauce

This easy crab butter sauce can be made four different ways. Try it plain, or season with lemon, garlic or cayenne. Serve with crab legs!
Prep Time2 mins
Cook Time8 mins
Total Time10 mins
Course: Condiment
Cuisine: American
Diet: Gluten Free
Servings: 8 servings (½ tablespoon each)
Calories: 55kcal


Crab Butter Sauce (Base):

  • ¼ cup butter (½ stick)
  • ½ lemon, juiced
  • small pinch sea salt (optional) Omit if using salted butter or if serving along with heavily seasoned crab.

Garlic Butter:

  • 2 cloves garlic, finely diced

Spicy Butter:

  • 1 teaspoon red chili flakes

Lemon Butter:

  • zest from one lemon


  • Melt the butter over medium-low heat.
    Allow the butter to melt but not brown.
    Add Butter To Saucepan
  • As soon as the butter melts, add any extra seasoning if desired (garlic, red pepper or lemon zest).
    Continue heating 1-2 minutes, or until the seasonings become fragrant.
    Stir in the lemon juice. Serve warm along with crab legs.
    Season the Butter


Make Ahead:  Butter can be refrigerated for up to 5 days or frozen for up to 6 months. 
Freezing Tips: If freezing, you may want to portion the butter into smaller amounts by freezing in silicone molds (such as a silicone ice cube tray).  Once frozen, transfer the frozen butter into an air-tight container.


Calories: 55kcal | Carbohydrates: 1g | Protein: 1g | Fat: 6g | Saturated Fat: 4g | Cholesterol: 15mg | Sodium: 55mg | Potassium: 14mg | Fiber: 1g | Sugar: 1g | Vitamin A: 251IU | Vitamin C: 4mg | Calcium: 5mg | Iron: 1mg