September 2, 2022| By

Seafood Boil Sauce

Prep Time: 5 mins
Cook Time: 20 mins
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This seafood boil sauce recipe is one for the record books. It's full of garlic and butter and a hint of spice for a rich sauce that pairs perfectly with seafood boils.

This easy sauce comes together in about 20 minutes and only requires a few simple ingredients! Grab you favorite type of seafood and let's make this delicious sauce!

This sauce is perfect with my tried and true cajun seafood boil and low country boil!

seafood boil sauce in a bowl surrounded by crab legs, corn, shrimp, and crawfish.

This sauce is essential for seafood boil recipes. Whether it be a crab boil, crawfish boil, shrimp boil, or just dipping your snow crab legs or lobster tails - you have to try this recipe. Only thing is, you may become addicted and never want to go to the seafood restaurant again because this will become your favorite seafood boil sauce, I can guarantee it. It's such a treat for your taste buds.

Best part? Cooking time from start to finish is 20 minutes. You'll have a delicious seafood butter sauce on your plate in no time!

Ingredients

A few simple ingredients go a long way for this

  • Butter: the star of the show, of course. Melted butter is the basis of this sauce. I used salted butter but feel free to use unsalted to control the saltiness of the sauce.
  • Yellow Onion and Fresh Garlic: these give the sauce a delicious aromatic flavor that goes so well with seafood. pro tip - dice the onions as finely as possible!
  • Homemade Seafood Seasoning mix: cajun seasoning, old bay seasoning, onion powder, and red pepper flakes. Salt and black pepper, to taste, of course.
  • Brown Sugar: hear me out - the sugar balances all of the salty flavors and makes this sauce divine. It doesn't make it sweet at all so don't worry about having a seafood boil dipping sauce that's sugary.
  • Chicken stock: the stock adds an additional layer of flavoring to the sauce and also loosens it up a bit. If you can't find stock, chicken broth works too.
  • Lemon juice: the lemon juices adds brightness to the sauce and gives it a slight citrus flavor.
an up close photo of seafood boil sauce in a bowl garnished with parsley.

Tips

  • Adjust the spice level to your liking by adding more (or less) red pepper flakes. If you want add extra spice, add a dash of hot sauce. I'm super sensitive to hot foods and would say that this sauce is pretty mild and flavorful. Taste as you go and adjust the ingredients as per your liking. See the recipe card for exact measurements.
  • Dice onions and garlic and finely as possible. This is key to releasing the flavors when cooking it in the butter.
  • If you prefer a thinner sauce, add another ½ cup of chicken stock.
  • Not all cajun seasonings are created equally. Some brands are salt free and others include salt in their blend. Be mindful of this while cooking and taste as you go to prevent having a sauce that's too spicy or too salty.
  • If you'd like to add a little bit of umami flavor, add some Worcestershire sauce.

How to make Seafood Boil Sauce

seafood on a table with corn and potatoes.
  • Melt butter in a large skillet over medium heat. Once all of the butter is melted, add diced onions and cook for 5 minutes. Then add diced garlic and continue to cook in the butter for 3 minutes.
  • Add in the cajun seasoning, old bay, onion powder, brown sugar, and red pepper flakes. Stir together and cook for 5 minutes. Then add chicken stock. Stir and allow the sauce to come to a boil then simmer for 6-8 minutes to thicken. Remove from the heat and squeeze in lemon juice and parsley.
  • Pour over cooked seafood and use any leftovers as a dipping sauce.

What to serve with Seafood Boil Sauce

seafood boil sauce in a bowl with a spoon.

Eat this great recipe with fresh seafood or any seafood dish. If you need some inspiration, try these recipes:

For more, here's an entire post on what to eat with a seafood boil.

Recipe FAQs

What is seafood boil sauce made of?

This seafood sauce recipe consists of cajun seasoning, old bay, garlic, onion powder, red pepper flakes, onions, butter, brown sugar, chicken stock, lemon juice, and fresh parsley.

How do you reheat seafood boil sauce?

Reheat the sauce two ways. For best results, add it to a pan over low heat and allow it to warm. You can also heat in the microwave in 30 second increments to ensure that the cooking process doesn't start again and burn the ingredients.

More Seafood Recipes

seafood boil sauce in a bowl with a spoon.

Seafood Boil Sauce Recipe

This seafood boil sauce recipe is full of garlic and butter and a hint of spice for a rich sauce that pairs perfectly with seafood boils.
Serving: 2.5 cups
Prep Time: 5 mins
Cook Time: 20 mins
Total Time: 25 mins
Calories: 182kcal

Equipment

  • Large Skillet

Ingredients

  • 2 cups Salted Butter
  • 1 Onion , diced
  • 8 cloves Garlic , diced
  • ¼ cup Cajun Seasoning
  • 2 tbsps Old Bay
  • 1 tbsp Onion Powder
  • 1 ½ tbsps Brown Sugar
  • 1 tbsp Red Pepper Flakes
  • 1 cup Chicken Stock
  • 2 tbsps Lemon Juice
  • 2 tbsp Fresh Parsley , chopped

Directions

  • Melt butter in a large skillet over medium heat. Once all of the butter is melted, add diced onions and cook for 5 minutes. Then add diced garlic and continue to cook in the butter for 3 minutes.
  • Add in the cajun seasoning, old bay, onion powder, brown sugar, and red pepper flakes. Stir together and cook for 5 minutes. Then add chicken stock. Stir and allow the sauce to come to a boil then simmer for 6-8 minutes to thicken.
  • Remove from the heat and squeeze in lemon juice and parsley.Pour over cooked seafood and use any leftovers as a dipping sauce.

Notes

Tips
  • Adjust the spice level to your liking by adding more (or less) red pepper flakes. If you want add extra spice, add a dash of hot sauce. I'm super sensitive to hot foods and would say that this sauce is pretty mild and flavorful. Taste as you go and adjust the ingredients as per your liking. See the recipe card for exact measurements.
  • Dice onions and garlic and finely as possible. This is key to releasing the flavors when cooking it in the butter.
  • If you prefer a thinner sauce, add another ½ cup of chicken stock.
  • Not all cajun seasonings are created equally. Some brands are salt free and others include salt in their blend. Be mindful of this while cooking and taste as you go to prevent having a sauce that's too spicy or too salty.
  • If you'd like to add a little bit of umami flavor, add some Worcestershire sauce.

Nutrition

Calories: 182kcal | Carbohydrates: 4g | Protein: 1g | Fat: 19g | Saturated Fat: 12g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 49mg | Sodium: 172mg | Potassium: 81mg | Fiber: 1g | Sugar: 2g | Vitamin A: 1396IU | Vitamin C: 2mg | Calcium: 20mg | Iron: 1mg
Course: Sauces, Seafood
Cuisine: American

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