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Garlic Butter Langostino Recipe

Garlic butter langostino makes a quick and easy dinner or a delicious appetizer. A buttery lemon garlic sauce comes together in just 10 minutes, then the langostinos and parsley are added to make this seafood dish. This recipe is incredibly easy and versatile, serve it as is or over pasta or rice for a more filling meal. You can find all of my langostino recipes here.

langostino in garlic butter sauce in metal pans

This langostino recipe is quick and easy enough for a weeknight dinner, but it would make an excellent appetizer for cocktail parties or special occasions. 

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Langostinos in garlic butter sauce

For this recipe, we are making a quick garlic butter sauce. Not simply adding garlic to melted butter, which is perfectly fine, but not exactly a sauce.

First, we will make a roux by combining melted butter with a bit of flour. Then fresh lemon juice and a bit of stock are added to make our lemony garlic butter sauce. 

Fear not, this silky garlic butter sauce is super simple and takes only a few minutes to come together. The langostinos are already cooked, so all you have to do is add them to the sauce to heat through and that’s it! This recipe is fast, easy and incredibly delicious.

overhead view of garlic butter langostinos in pans with lemon and parsley

This dish looks super fancy, doesn’t it? When you serve this fancy looking garlic butter langostino, you will get all the “oohs and ahs”, but only you and I will know that this took you 15 minutes to make and you barely broke a sweat. Sit back and collect your accolades, you deserve it.

Garlic butter langostinos

This recipe would make a fantastic appetizer. You could serve this as a special occasion appetizer for Christmas Eve or New Years Eve. If you cook the Feast of 7 fishes on Christmas Eve, this would be a great addition to the feast!

I really like these clear plastic teardrop appetizer spoons for serving ceviche or small bites like this langostino.

The holidays would be a perfect time to serve these to friends and family. Whether you’re having an informal family gathering, or a fancy party with champagne and nibbles as the ball drops, this langostino with garlic butter sauce would be right at home. 

langostinos in garlic butter sauce in metal pan.

To serve these for dinner, I put them in mini tapas pans. If I weren’t watching my carb intake, I’d serve these buttery garlic langostinos with a piece of crusty bread to dip in the sauce.

We love langostinos, so when I spot them at Costco or Trader Joes, I grab them. Luckily, we are both seafood lovers in this house. Because they are sold frozen, it’s easy to grab a couple of pounds and stash them in the freezer until I’m ready to use them. 

How to cook langostino

Langostinos are sold already peeled and cooked, then frozen. That is the best part of making a langostino recipe. To add them to your recipe all you have to do to prepare them is thaw and drain them well.

langostinos in buttery garlic lemon sauce with lemon wedges and parsley

If you are unfamiliar with langostinos, the flavor is similar to lobster, but they look a bit like crayfish. This delicate crustacean is super versatile and incredibly tasty. You can substitute langostinos in recipes that call for lobster or shrimp.

Langostino is a term that can be used for a few varieties of crustaceans, depending where you are in the world. It can refer to a species of shrimp or to a certain species of lobster, although they are technically related to a crab. A langoustine is in the lobster family and is different from a langostino.

Low carb langostino recipes

If you are following a low carb or keto diet, this is a great recipe for you. It fits perfectly into that diet, although you’d have to look at the macros on this to make sure it is within the guidelines for a keto diet. 

Adding cauliflower rice, zucchini or green beans to this garlic butter langostino would make a tasty, low carb dinner.

Langostino recipes

Langostinos can be used in a variety of recipes, like the ones below:

If you like a little heat, add a pinch of red pepper flakes to your langostinos!

What can I serve with garlic butter langostino?

To make this a complete meal, here are a few options:


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recetas con langostinos

I hope you love this recipe as much as we do! Please consider rating and/or commenting. I love hearing from you! Did you make this langostino recipe? Tag me on instagram @pookspantry or share it in the Fabulous Foodie Friends Facebook group! I can’t wait to see your version!

langostinos in garlic butter sauce in metal pan.

Garlic Butter Langostino

Cheryl Bennett
Quick and easy langostinos in garlic butter sauce make a delicious dinner or appetizer.
4.61 from 71 votes
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Course Seafood
Cuisine American
Servings 4
Calories 204 kcal


  • 1 pound langostinos thawed and drained
  • 6 tbsp. unsalted butter
  • 2 tbsp. flour
  • 1/4 cup garlic sliced thinly (or minced)
  • 1/4 cup fresh lemon juice
  • 1/2 cup chicken stock
  • 2 tsp. kosher salt
  • 1 tsp. black pepper
  • 2 tbsp. flat-leaf Italian parsley chopped
  • optional: red pepper flakes lemon wedges for serving


  • In a medium saucepan over medium heat, melt butter.
  • Whisk in flour until it forms a paste (roux). Cook for 3 - 4 minutes.
  • Add chicken stock and lemon juice while whisking constantly.
  • Add garlic, salt and pepper. Stir to combine and bring to a simmer.
  • Add langostinos, cook for 1 - 2 minutes to warm langostino.
  • Remove from heat and add chopped parsley. Serve.


If you choose to use minced garlic, reduce the amount to 1/8 cup. I use a Japanese mandoline to slice the garlic. It makes beautiful, paper thin slices.


Serving: 1gCalories: 204kcalCarbohydrates: 11gProtein: 2gFat: 18gSaturated Fat: 11gPolyunsaturated Fat: 6gCholesterol: 47mgSodium: 1211mgFiber: 1gSugar: 2g
Tried this recipe?Let us know how it was!

Thanks for stopping by! Have a delicious day 🙂


  1. I made this with a Trader Joe’s 12 oz bag of tails–I cut the butter in half because it seemed like a lot and I used one 1 head of garlic and it was delicious! I probably would cut the butter back even more–or next time make it with a full pound and simply keep the butter at 3T. But so creamy, delicious and the lemon gave it a nice kick.

  2. What a quick and delicious dish, yet a tad sophisticated! Bought the Chilean langostinos from Costco, but did not know how to use them, this recipe is perfect and easy to follow. Thanks!

  3. Too much salt! I think it would be good but if I make again I’ll definitely use just 1 teaspoon

    1. Everyone’s palate is different, Julie. What was too salty for you may not be for someone else. I hope you will make it again and adjust the salt to your preference.

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