Cheesy Jumbo Lump Crab Au Gratin

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If you’re searching for something indulgent, rich, and unapologetically satisfying, this Cheesy Jumbo Lump Crab Au Gratin is a coastal dream turned reality. The creamy texture, the generous chunks of sweet crab meat, and the golden, bubbling cheesy crust make this dish an instant hit whether served as an appetizer or main course.

It brings the elegance of seafood into your kitchen, but without all the fuss. Perfect for cozy nights in, date night at home, or impressing guests over the holidays, this dish has the flavor of a high-end restaurant with the comfort of Southern cooking.

Why You’ll Love This Cheesy Jumbo Lump Crab Au Gratin

This recipe is everything you love about crab dip but richer and heartier. It has that perfect contrast between creamy and cheesy with a bold seafood flavor that doesn’t get lost in the sauce. The use of jumbo lump crab elevates the entire dish, giving it sweet, meaty bites in every spoonful. Best of all? It’s a one-dish wonder that bakes up golden in under 30 minutes.

What Kind of Crab Should I Use?

The key to the best crab au gratin is using jumbo lump crab meat. It holds its texture beautifully in the cheese sauce and gives that unmistakable sweetness that makes this dish so beloved. Look for refrigerated crab meat at the seafood counter. Avoid imitation crab or canned varieties for this particular recipe, as they won’t deliver the same richness or mouthfeel.

Ingredients for the Cheesy Jumbo Lump Crab Au Gratin

The beauty of this dish lies in its simplicity. Each ingredient plays an important role in building the creamy, savory base while letting the crab shine.

• Jumbo lump crab meat
• Cream cheese
• Mayonnaise
• Sour cream
• Sharp white cheddar cheese
• Parmesan cheese
• Fresh garlic
• Old Bay seasoning
• Green onions
• Worcestershire sauce
• Fresh lemon juice
• Hot sauce

How To Make the Cheesy Jumbo Lump Crab Au Gratin

Step 1: Prep the Creamy Base

In a large mixing bowl, combine cream cheese, mayonnaise, sour cream, minced garlic, Worcestershire sauce, lemon juice, and hot sauce. Use a hand mixer or whisk until smooth and fluffy.

Step 2: Add the Cheese

Fold in the shredded sharp white cheddar and a handful of grated Parmesan. Mix until well incorporated but don’t over-stir.

Step 3: Gently Fold in the Crab

Using a spatula, gently fold the jumbo lump crab into the cheese mixture. Be careful not to break up the lumps.

Step 4: Transfer and Top

Spoon the mixture into a baking dish. Top with a generous sprinkle of Parmesan cheese and green onions.

Step 5: Bake to Perfection

Bake at 375°F for 20-25 minutes or until bubbling and golden on top. Let it rest a few minutes before serving.

How to Serve and Store Your Crab Au Gratin

This dish is best served hot straight out of the oven, where the cheesy topping is gooey and slightly browned. It feeds around 4 to 6 people as a side or appetizer, or 2 to 3 as a main dish alongside a salad or roasted vegetables.

If you have leftovers, store them in an airtight container in the fridge for up to 2 days. Reheat gently in the oven or microwave. Avoid freezing this dish, as the dairy ingredients tend to separate when thawed.

What to Serve With Cheesy Crab Au Gratin?

Toasted French Bread

Slices of baguette or rustic bread are perfect for scooping up every cheesy bite.

Roasted Asparagus

The freshness of asparagus balances the richness of the dish.

Buttery Rice Pilaf

Let the crab au gratin melt over warm rice for a cozy pairing.

Caesar Salad

A crisp, cool salad with garlicky dressing complements the creamy crab.

Garlic Mashed Potatoes

Soft, garlicky potatoes make a comforting, crowd-pleasing partner.

Grilled Zucchini

A light veggie side that keeps things fresh and easy.

Southern Cornbread Poppers

A touch of sweetness and crunch pairs nicely with the rich crab filling.

Lemon-Dill Cucumber Salad

Bright, cool, and crunchy—the ideal palate cleanser.

Want More Seafood-Inspired Comfort Food?

If you loved this Cheesy Jumbo Lump Crab Au Gratin, dive into more crave-worthy dishes that bring flavor to the forefront:

• Baked Stuffed Shrimp Casserole
• Creamy Garlic Marry Me Salmon
• Honey Garlic Shrimp Sausage Broccoli
• Marry Me Shrimp Pasta
• Savory Chicken Wraps with Garlic Cream Sauce

Save This Recipe For Later

📌 Save this recipe to your Pinterest seafood or comfort food board so you can come back to it any time.

Let me know in the comments how yours turned out. Did you add breadcrumbs for a little crunch? Maybe tried a different cheese blend?

I love hearing how others make these recipes their own. Questions are welcome too — let’s help each other cook smarter.

Explore beautifully curated seafood recipes and creamy classics on Mia Recipes on Pinterest and discover your new go-to comfort food lineup!

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