Cheesy Jumbo Lump Crab Au Gratin

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Golden and bubbling, this Cheesy Jumbo Lump Crab Au Gratin is the kind of dish that makes any dinner feel indulgent. Rich, creamy, and bursting with sweet chunks of crab meat, it strikes that perfect balance between elegance and comfort. Whether you’re cooking for a dinner party or craving a seafood treat on a cozy night in, this crab au gratin delivers every time.

Imagine creamy cheese sauce hugging every morsel of tender crab, all topped with a bubbling crust of golden, broiled cheese. It’s seafood gratin at its finest—savory, decadent, and unbelievably satisfying. The kind of dish you scoop into and instantly know it’s going to become a regular request.

What Kind of Crab Meat Should I Use?

For the richest, most luxurious texture and flavor, jumbo lump crab meat is the gold standard. Its large, delicate pieces hold up beautifully in the creamy sauce and provide that distinct sweetness you can only get from premium crab. If you’re looking for a budget-friendly swap, backfin or claw meat will still deliver great results—just with a slightly different texture.

Ingredients for the Cheesy Jumbo Lump Crab Au Gratin

Jumbo Lump Crab Meat: This is the heart of the dish. Its sweet, delicate flavor and chunky texture elevate the entire gratin.

Cream Cheese: Forms the base of the creamy sauce, giving the dish its signature richness.

Heavy Cream: Helps loosen the cream cheese and adds silkiness to the sauce.

Sharp White Cheddar: Brings bold flavor and perfect melting texture.

Parmesan Cheese: Adds a salty, nutty layer that crisps up beautifully under the broiler.

Garlic & Shallots: These aromatics round out the flavor and keep the dish from tasting too one-note.

Old Bay Seasoning: A must for any crab dish, giving it that classic seafood edge.

Fresh Chives: For garnish and a pop of color.

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How To Make the Cheesy Jumbo Lump Crab Au Gratin

Step 1: Sauté Aromatics

In a medium saucepan over medium heat, melt a bit of butter and sauté finely chopped shallots and minced garlic until fragrant and translucent—about 2-3 minutes.

Step 2: Make the Creamy Base

Add softened cream cheese to the pan and stir until it starts to melt. Slowly whisk in heavy cream until smooth and bubbling gently.

Step 3: Stir in Cheeses

Fold in the shredded sharp cheddar and a bit of grated Parmesan. Stir until everything is melted and velvety.

Step 4: Fold in the Crab

Gently stir in the crab meat, being careful not to break up those beautiful jumbo lumps. Sprinkle in Old Bay seasoning to taste.

Step 5: Transfer and Top

Spoon the mixture into small oven-safe ramekins or a baking dish. Top with a little extra cheddar and Parmesan.

Step 6: Broil Until Golden

Place under the broiler for 3-5 minutes or until the top is bubbling and golden brown. Watch closely to avoid burning.

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Serving and Storing Your Cheesy Crab Au Gratin

Serve this dish bubbling hot, straight from the oven. It makes an excellent starter for an elegant dinner or a rich main dish when paired with a fresh salad or roasted vegetables. If you have leftovers, store them in an airtight container in the fridge for up to two days. Reheat gently in the oven or a toaster oven to retain the cheesy topping’s texture.

What to Serve With Cheesy Crab Au Gratin?

Crusty Bread or Garlic Toast

Perfect for scooping up every creamy bite.

Light Garden Salad

A fresh contrast to the richness of the gratin.

Roasted Asparagus

Brings a crisp, slightly bitter balance to the creamy crab.

Lemon Butter Broccolini

The citrus helps cut through the decadence.

Herbed Rice Pilaf

A mild, savory base that complements the crab beautifully.

Sparkling Wine or Champagne

Yes, a drink pairing counts—effervescence keeps the palate refreshed.

Sauteed Mushrooms

Earthy and buttery, mushrooms pair wonderfully with creamy dishes.

Deviled Eggs with a Twist

Add a crab garnish to carry the theme through courses.

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Want More Seafood Comfort Food Ideas?

If this Cheesy Jumbo Lump Crab Au Gratin has your mouth watering, you’re in for more cozy inspiration:

• Cheesy Spinach Stuffed Shells for a vegetarian twist with a similar creamy kick.
• Chicken Cordon Bleu Casserole if you’re craving comfort with a classic twist.
• Creamy Beef and Shells for an easy weeknight win.
• Stovetop Creamy Ground Beef Pasta for when you want no-fuss indulgence.
• Creamy Ground Beef Alfredo Pasta with a rich, savory edge.

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And let me know in the comments how yours turned out. Did you add hot sauce? Maybe try some Gruyère on top? I love seeing your versions!

Explore more crave-worthy comfort recipes on ChefAlchemy’s Pinterest. Whether it’s seafood, pasta, or casseroles, we’ve got your next favorite dish waiting!

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