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Delicious seafood boil sauce recipe with shrimp and crab legs garnished with parsley on a white plate

20-Minute Seafood Boil Sauce

Alex
This simple yet flavorful seafood boil sauce is perfect for enhancing your next crab or shrimp boil. Rich with butter and spiked with spices, it's easy enough for beginners and delicious enough to impress any guest.
5 from 1 vote
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Course Sauce
Cuisine American
Servings 8 People / Servings
Calories 200 kcal

Ingredients
  

  • 1 cup butter About 2 sticks
  • 1 Large onion Finely diced
  • 6 Cloves garlic minced
  • 2 tablespoons Cajun seasoning
  • 1 teaspoon Red pepper flakes If you prefer a spicier kick
  • ½ cup Seafood stock or chicken broth
  • 1 tablespoon Soy sauce
  • 1 Lemon juiced
  • ½ teaspoon Salt
  • ¼ teaspoon pepper

Instructions
 

  • Prepare Your Cooking Station: Gather all ingredients and cooking tools before you start. Having everything at hand will streamline the cooking process and ensure you don’t miss any steps.
  • Begin with the Base: Melt the butter in a medium-sized saucepan over medium heat. The choice of butter impacts the flavor, so choose a high-quality brand for the best results.
  • Sauté the Aromatics: Add the finely diced onion to the butter, cooking until translucent—about 3-4 minutes. Then, add the minced garlic, cooking until it’s just golden and fragrant. This method draws out the natural sweetness and robust flavors of the garlic and onion, forming a flavorful foundation for the sauce.
  • Incorporate the Seasonings: Sprinkle the Cajun seasoning and optional red pepper flakes into the pan, stirring continuously to prevent burning. Allow the spices to cook for about 1 minute to unleash their full aromatic potential.
  • Simmer and Combine Flavors: Pour in the seafood stock and soy sauce, stirring well. Add the fresh lemon juice, enhancing the sauce with a bright, citrusy note. Let the mixture simmer for 5 minutes, allowing the sauce to thicken slightly and the flavors to meld together beautifully.
  • Final Adjustments and Serve: Taste the sauce and adjust the seasoning with salt and black pepper as needed. Serve the sauce immediately over your favorite seafood boil, or transfer it to a heat-resistant container to keep warm until ready to serve.

Notes

  • Calories per serving: 200 calories (about 28 grams)
  • Difficulty: Easy
  • Dietary Tags: Gluten-Free
  • Nutritional Info per serving: 22g fat, 14g sat fat, 3g carbs, 0g fiber, 1g protein, 150 mg sodium
Keyword crab and shrimp boil sauce, easy seafood sauce, homemade seafood sauce, seafood boil sauce recipe, spicy butter sauce
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