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Seafood Boil Sauce Recipe

Cajun seafood boil coated with garlic butter sauce

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A buttery, garlicky, mildly spicy Cajun-style sauce that's perfect for pouring over crab, shrimp, potatoes—or just dunking with a chunk of bread. This one turns any seafood boil into a full-on party.

Ingredients

Scale

2 cups salted butter

1 onion, diced

8 cloves garlic, diced

1/4 cup Cajun seasoning

2 tablespoons Old Bay seasoning

1 tablespoon onion powder

1 1/2 tablespoons brown sugar

1 tablespoon red pepper flakes

1 cup chicken stock (or broth)

2 tablespoons lemon juice

2 tablespoons fresh parsley, chopped

Instructions

  1. In a large skillet over medium heat, melt the butter.
  2. Add diced onions and cook for about 5 minutes until soft.
  3. Stir in garlic and let that cook for another 3 minutes.
  4. Mix in Cajun seasoning, Old Bay, onion powder, brown sugar, and red pepper flakes. Let it all mingle for 5 minutes.
  5. Pour in the chicken stock, stir, and bring the sauce to a light boil. Then reduce to a simmer for 6–8 minutes so it thickens up.
  6. Take it off the heat, squeeze in the lemon juice, and toss in the parsley. Give it one final stir.

Notes

  • Wanna turn up the heat? A little hot sauce never hurt anybody.
  • Dice that onion and garlic nice and small to let out all the flavor.
  • Too thick? Loosen it with a splash more chicken stock.
  • Different Cajun seasonings got different salt levels—taste as you go, capisce?
  • A dash of Worcestershire sauce gives it a nice umami punch if you're feelin’ fancy.

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