Truffle Butter Parmesan Broiled King Crab Legs

This recipe turns Alaskan King Crab legs into a showstopping centerpiece with a luxurious truffle butter and Parmigiano crust. The crab is split lengthwise to expose the sweet, tender meat, then broiled in a cast-iron skillet until the butter bubbles and the cheese turns golden.

It is a one-pan dish that feels like a steakhouse splurge, yet takes only minutes of active work. Perfect for a celebration, a romantic dinner, or any night that calls for something extraordinary.

Broiled King Crab legs are a classic way to enjoy this prized shellfish, but the addition of truffle oil, garlic, and Parmigiano takes them to another level. The butter mixture is whipped together in seconds, spooned over the cut crab, and then blasted under the broiler.

The result is a dish that is simultaneously rich, nutty, and briny, with the crab meat staying moist and tender. This recipe is designed for home cooks who want a restaurant-quality meal without the fuss.

Ingredients

Why this recipe works

Splitting the crab legs lengthwise is the key to this recipe. It exposes the meat directly to the heat and the butter, so every bite is infused with truffle and garlic.

The shell acts as a natural vessel, holding the butter against the meat as it broils. This method also allows the cheese to form a crust directly on the crab, creating a textural contrast between the crisp topping and the silky meat.

Broiling at high heat quickly melts the cheese and browns the butter, developing a deep, nutty flavor that complements the sweet crab. The cast-iron skillet retains heat and ensures even cooking, while also providing a dramatic presentation from oven to table. The short cooking time prevents the crab from drying out, so it remains juicy and tender.

Notes and substitutions

Use the best quality King Crab legs you can find, preferably Alaskan and already cooked. The recipe works with frozen legs that have been thawed overnight in the refrigerator.

For the truffle oil, choose a high-quality oil made with real truffles, not artificial flavoring. Parmigiano-Reggiano is ideal, but any aged hard cheese will work. Fresh lemon juice brightens the butter and cuts through the richness.

A cast-iron skillet is recommended for this recipe because it can go from stovetop to broiler and retains heat beautifully. If you do not have one, use any oven-safe skillet or a baking dish. The butter mixture can be prepared ahead and stored in the refrigerator; let it come to room temperature before using. For a more intense truffle flavor, add a few drops of truffle oil just before serving.

• Black truffle oil: White truffle oil or 1 tablespoon truffle butter (reduce the stick butter to 7 tablespoons)
• Parmigiano-Reggiano: Aged Asiago or Grana Padano, finely grated
• Alaskan King Crab legs: Snow crab legs or Dungeness crab clusters (adjust broiling time if legs are thinner)
• Unsalted butter: Salted butter (omit any added salt in the butter mixture)

Equipment

• Cast-iron skillet
• Kitchen shears
• Small bowl
• Whisk
• Aluminum foil (optional for lining)
• Oven mitts
• Serving platter