Classic Lobster Mac and Cheese

Here is my favorite lobster mac and cheese recipe, with tender chunks of sweet lobster meat, creamy cheese sauce, and pasta baked until golden and bubbly on top.

This lobster mac and cheese is what I make when we’re celebrating something special or when I want to treat my family to something really good. It’s fancy enough for company but honestly, we love it so much that sometimes I make it just because it’s Tuesday.

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What Kind of Lobster Should I Use?

You can use fresh lobster tails, whole cooked lobster, or even frozen lobster meat for this recipe – they’ll all give you great results. If you’re buying fresh, figure on about one pound of whole lobster per person to get roughly half a pound of meat, or just grab pre-cooked lobster meat from the seafood counter to save yourself some time. Frozen lobster meat is totally fine too, just make sure to thaw it completely and pat it dry before adding it to your mac and cheese. The key is to add the lobster at the end of cooking so it stays tender and doesn’t get rubbery from overcooking.

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Options for Substitutions

This recipe is pretty forgiving when it comes to swaps, so here are some options if you need them:

• Macaroni: While elbow macaroni is classic, you can use other short pasta shapes like shells, cavatappi, or penne. They all hold the cheese sauce nicely.
• Evaporated milk and half and half: If you don’t have evaporated milk, use regular whole milk instead – just simmer it a bit longer to thicken the sauce. You can also swap half and half with whole milk or heavy cream depending on how rich you want it.
• Cheese blend: The combination of mozzarella, cheddar, and jack creates a great melt, but feel free to mix it up. Gruyere, fontina, or gouda all work well. Just avoid pre-shredded cheese if possible – it doesn’t melt as smoothly.
• Creole seasoning: Don’t have Creole seasoning? Make your own by mixing paprika, garlic powder, onion powder, dried oregano, and a pinch of cayenne.
• Lobster meat: This is the star ingredient, but if lobster isn’t available or fits your budget, you can use crab meat, large shrimp, or a mix of seafood. Cook shrimp separately before adding to avoid overcooking.

Watch Out for These Mistakes While Cooking

The biggest mistake when making lobster mac and cheese is overcooking the lobster, which turns it rubbery and tough – since you’re using pre-cooked lobster meat, just fold it in during the last few minutes of cooking to warm it through. Another common error is making a grainy cheese sauce, which happens when the heat is too high or you add the cheese all at once – keep your heat on medium-low and add the cheese gradually, stirring constantly until it melts smoothly. Don’t skip seasoning your pasta water with salt, as this is your only chance to season the noodles themselves, and make sure to cook them just shy of al dente since they’ll continue cooking when mixed with the hot cheese sauce. For extra insurance against a broken sauce, remove the pan from heat before adding your cheese, and if your sauce seems too thick, thin it out with a splash of reserved pasta water rather than more milk.

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What to Serve With Lobster Mac and Cheese?

Since lobster mac and cheese is already pretty rich and indulgent, I like to balance it out with something fresh and crisp on the side. A simple arugula salad with lemon vinaigrette cuts through all that creamy cheese perfectly, or you could go with roasted asparagus or green beans for a lighter vegetable option. If you want to keep things on the fancier side to match the lobster, garlic butter bread or a warm baguette is perfect for soaking up any extra cheese sauce. For a full seafood feast, consider adding some steamed mussels or a shrimp cocktail as an appetizer before diving into the mac and cheese.

Storage Instructions

Store: Keep your leftover lobster mac and cheese in an airtight container in the fridge for up to 3 days. The lobster is pretty delicate, so I wouldn’t push it past that. It makes great leftovers for lunch the next day!

Freeze: I don’t recommend freezing this one. The lobster can get rubbery and the creamy cheese sauce tends to separate when thawed, which really affects the texture. It’s best enjoyed fresh or within a few days from the fridge.

Reheat: Warm it up gently in the microwave at 50% power, stirring every 30 seconds or so. You can also reheat it on the stovetop over low heat with a splash of milk to bring back that creamy texture. Just be careful not to overcook the lobster or it’ll get tough.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 1800-2000
• Protein: 80-95 g
• Fat: 90-105 g
• Carbohydrates: 155-170 g

Ingredients

For the pasta:

• 8 oz macaroni (elbow or small shells)

For the cheese sauce:

• 3 tbsp unsalted butter (I prefer Kerrygold for richness)
• 1/4 tsp cayenne pepper (adjust to taste)
• 1/2 cup sharp cheddar cheese (I use Cabot for best flavor)
• salt to taste
• 1/2 cup jack cheese
• 2 tsp garlic powder
• 2 tbsp flour (all-purpose)
• 3/4 cup half and half (room temperature)
• 1 tbsp onion powder
• 1/2 cup mozzarella cheese (freshly shredded)
• black pepper to taste (freshly ground)
• 12 fl oz evaporated milk
• 1 tsp Creole seasoning

For the lobster:

• 1/2 lb cooked lobster meat (fresh or frozen, thawed)

Step 1: Prepare Lobster and Pasta

• 8 oz macaroni
• 1/2 lb cooked lobster meat
• salt to taste

First, bring a large pot of salted water to a rolling boil.

Carefully add the macaroni and cook according to package directions until al dente, then drain and set aside.

I like to cook the pasta just shy of al dente since it will finish cooking in the oven later.

If using fresh lobster, in a separate pot, boil the lobster for 7-8 minutes, then immediately transfer it to an ice bath to stop cooking.

Crack the claws and tails, then remove and chop the lobster meat into bite-sized pieces.

If using pre-cooked lobster meat, simply chop it and have it ready.

Step 2: Start the Roux and Build the Sauce Base

• 3 tbsp unsalted butter
• 2 tbsp flour
• 3/4 cup half and half
• 12 fl oz evaporated milk

In a large saucepan or Dutch oven over medium heat, melt the unsalted butter.

Once the butter is melted and slightly foamy, whisk in the all-purpose flour and cook for 1 minute, stirring constantly, to create a roux.

This step is crucial for thickening our cheese sauce later.

Gradually whisk in the room temperature half and half and evaporated milk until smooth, ensuring there are no lumps.

My personal tip here is to make sure your half and half is at room temperature to prevent the sauce from seizing up.

Step 3: Season and Thicken the Sauce

• 2 tsp garlic powder
• 1 tbsp onion powder
• 1 tsp Creole seasoning
• 1/4 tsp cayenne pepper

Continue to simmer the sauce base over medium heat for 3-5 minutes, stirring frequently, until it visibly thickens to a creamy consistency.

Once thickened, stir in the garlic powder, onion powder, Creole seasoning, and cayenne pepper.

Allow the seasonings to simmer with the sauce for an additional 2 minutes to fully develop their flavors.

For a richer flavor, I like to toast my individual spices for a few seconds in a clean, dry pan before adding them to the sauce.

Step 4: Melt the Cheeses and Combine

• 1/2 cup sharp cheddar cheese
• 1/2 cup jack cheese
• 1/2 cup mozzarella cheese
• salt to taste
• black pepper to taste

Reduce the heat to low, then gradually stir in the sharp cheddar cheese, jack cheese, and about half of the mozzarella cheese until completely melted and smooth.

Season the cheese sauce with salt and freshly ground black pepper to taste.

Once the cheese sauce is velvety, add the cooked macaroni and chopped lobster meat to the pan, stirring gently to ensure everything is evenly coated.

Taste and adjust seasoning if needed.

Step 5: Bake to Golden Perfection

Preheat your oven to 375℉ (190°C).

Transfer the lobster mac and cheese mixture into a baking dish.

Sprinkle the remaining mozzarella cheese evenly over the top, creating a delicious cheesy crust.

Bake for approximately 20 minutes, or until the topping is bubbly and golden brown.

I find that a quick broil for the last minute or two can give it an extra beautiful golden top, but keep a close eye on it so it doesn’t burn!

Classic Lobster Mac and Cheese

Delicious Classic Lobster Mac and Cheese recipe with step-by-step instructions.

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Prep Time 19 minutes mins

Cook Time 38 minutes mins

Total Time 57 minutes mins

Servings 4

Calories 1900 kcal

Ingredients

  

For the pasta:

• 8 oz macaroni (elbow or small shells)

For the cheese sauce:

• 3 tbsp unsalted butter (I prefer Kerrygold for richness)
• 1/4 tsp cayenne pepper (adjust to taste)
• 1/2 cup sharp cheddar cheese (I use Cabot for best flavor)
• salt to taste
• 1/2 cup jack cheese
• 2 tsp garlic powder
• 2 tbsp flour (all-purpose)
• 3/4 cup half and half (room temperature)
• 1 tbsp onion powder
• 1/2 cup mozzarella cheese (freshly shredded)
• black pepper to taste (freshly ground)
• 12 fl oz evaporated milk
• 1 tsp Creole seasoning

For the lobster:

• 1/2 lb cooked lobster meat (fresh or frozen, thawed)

Instructions

 

• First, bring a large pot of salted water to a rolling boil. Carefully add the macaroni and cook according to package directions until al dente, then drain and set aside. I like to cook the pasta just shy of al dente since it will finish cooking in the oven later. If using fresh lobster, in a separate pot, boil the lobster for 7-8 minutes, then immediately transfer it to an ice bath to stop cooking. Crack the claws and tails, then remove and chop the lobster meat into bite-sized pieces. If using pre-cooked lobster meat, simply chop it and have it ready.
• In a large saucepan or Dutch oven over medium heat, melt the unsalted butter. Once the butter is melted and slightly foamy, whisk in the all-purpose flour and cook for 1 minute, stirring constantly, to create a roux. This step is crucial for thickening our cheese sauce later. Gradually whisk in the room temperature half and half and evaporated milk until smooth, ensuring there are no lumps. My personal tip here is to make sure your half and half is at room temperature to prevent the sauce from seizing up.
• Continue to simmer the sauce base over medium heat for 3-5 minutes, stirring frequently, until it visibly thickens to a creamy consistency. Once thickened, stir in the garlic powder, onion powder, Creole seasoning, and cayenne pepper. Allow the seasonings to simmer with the sauce for an additional 2 minutes to fully develop their flavors. For a richer flavor, I like to toast my individual spices for a few seconds in a clean, dry pan before adding them to the sauce.
• Reduce the heat to low, then gradually stir in the sharp cheddar cheese, jack cheese, and about half of the mozzarella cheese until completely melted and smooth. Season the cheese sauce with salt and freshly ground black pepper to taste. Once the cheese sauce is velvety, add the cooked macaroni and chopped lobster meat to the pan, stirring gently to ensure everything is evenly coated. Taste and adjust seasoning if needed.
• Preheat your oven to 375℉ (190°C). Transfer the lobster mac and cheese mixture into a baking dish. Sprinkle the remaining mozzarella cheese evenly over the top, creating a delicious cheesy crust. Bake for approximately 20 minutes, or until the topping is bubbly and golden brown. I find that a quick broil for the last minute or two can give it an extra beautiful golden top, but keep a close eye on it so it doesn't burn!