How to Cook Snow Crab Legs in the Oven (Garlic Butter) is a simple seafood recipe that delivers buttery flavor, quick oven cooking, and restaurant-style results at home. This baked snow crab legs recipe uses Cajun garlic butter, lemon, and classic seafood seasoning to gently reheat crab legs in the oven while infusing them with rich flavor.
If you enjoy seafood dinners like this, try our Easy Bay Scallop Pasta Recipe with Lemon Garlic Sauce, Baked Shrimp with Garlic Butter, or our Lemon Garlic Baked Halibut.
Baked Snow Crab Legs at a Glance 🔎
- 🕒 Prep Time: 10 minutes
- ⏱️ Cook Time: 12-15 minutes
- 👥 Servings: 2
- 🔥 Cook Method: Oven baked
- 🍽️ Cuisine (or General Category): Seafood
- 👩🍳 Pair With: Garlic Butter Baby Red Potatoes, Baked Corn on the Cob, Southern Marinated Cucumber Tomato Salad, crusty bread
- ⭐ Difficulty Level: Easy
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Oven roasted crab legs are one of the easiest seafood dinners we make The garlic butter sauce soaks into the shells and they taste amazing! ~Jami
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Why We Love This Recipe
- Restaurant Style Flavor: Cajun garlic butter melts into the shells while the crab reheats, giving each bite a buttery seafood boil flavor. Our Shrimp and Crab Gumbo is another favorite.
- Simple Oven Method: Baking crab legs in a covered dish traps steam so the meat stays tender without complicated cooking techniques.
- Quick Seafood Dinner: From start to finish the recipe takes about 25 minutes, making it surprisingly doable for a weeknight meal. Just like our Shrimp Scampi Without Wine.
- Perfect For Entertaining: Crab legs always feel special at the table and this recipe scales easily for gatherings or holiday dinners.
Key Ingredients
Here's some of the main ingredients you'll need to make these baked garlic-butter snow crab legs.
- Snow Crab Legs: Snow crab legs are naturally sweet and delicate. Most are sold fully cooked and frozen, so the oven simply reheats them while preserving their texture.
- Unsalted Butter: Butter forms the base of the sauce and helps carry the Cajun seasoning and garlic into the crab shells.
- Olive Oil: A small amount of olive oil stabilizes the butter and helps prevent it from scorching when heated with the spices.
- Garlic: Fresh minced garlic brings aroma and depth that pairs beautifully with seafood and lemon.
- Cajun Seasoning: Cajun seasoning adds warmth and complexity with paprika, herbs, and spices.
- Old Bay Seasoning: A classic seafood seasoning that reinforces the coastal flavor of the crab.
- Smoked Paprika: Smoked paprika adds subtle smokiness and deep color to the butter sauce.
- Onion Powder: Onion powder enhances savory flavor without overpowering the delicate crab meat.
- Garlic Powder: A second layer of garlic flavor that blends evenly through the butter.
- Cayenne Pepper: Optional but great for adding a gentle heat that complements the richness of the butter.
- Lemon Juice: Fresh lemon brightens the sauce and balances the richness of the butter.
- Worcestershire Sauce: A small splash adds savory depth and umami.
A full ingredient list with exact measurements can be found in the recipe card below.
Substitutions & Variations
- Snow Crab Legs: King crab legs can be used instead. They are thicker and may need a few additional minutes in the oven.
- Cajun Seasoning: Creole seasoning or a simple mix of paprika, garlic powder, and thyme can replace Cajun seasoning.
- Butter: Use ghee or clarified butter for a cleaner butter flavor and slightly higher heat tolerance.
- Seafood Boil Style: Add additional Old Bay, red pepper flakes, and extra lemon for a stronger seafood boil flavor.
- Presentation: Serve the crab legs on a large platter with lemon wedges and parsley so guests can help themselves family-style.
How To Make Snow Crab Legs in the Oven
STEP ONE: Prepare the Crab Legs
Preheat the oven to 400°F and lightly grease a baking dish. Cut the crab legs into manageable sections and slit the top of each shell so the butter can soak into the meat (optional).
STEP TWO: Prepare the Cajun Garlic Butter
In a small saucepan over medium-low heat, melt butter with olive oil.
Add garlic and cook briefly until fragrant, then stir in Cajun seasoning, Old Bay, smoked paprika, onion powder, garlic powder, lemon juice, Worcestershire sauce, and pepper.
STEP THREE: Prepare the Baking Dish
Arrange the crab legs in a single layer in the baking dish.
Pour the seasoned garlic butter evenly over the crab legs, letting the butter run into the shell openings. Cover tightly with foil to trap steam.
STEP FOUR: Bake the Crab Legs
Bake for 12-15 minutes until the crab legs are hot and fragrant. Remove the foil carefully, spoon the pan juices over the crab, and finish with parsley and lemon wedges.
Expert Tips for Success
👩🍳Jami's Pro Tips: Want to take this recipe to the next level? Check out my expert tips below for the best flavor, texture, and meal prep hacks!
✔️ DO Slit the shells before baking. This allows the butter to reach the crab meat and makes the legs easier to crack.
✔️ DO Cover the dish tightly with foil. Steam keeps the crab tender and prevents it from drying out.
❌ DO NOT Overcook the crab. Snow crab legs are already cooked and only need reheating.
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Storage
Store leftover crab legs in an airtight container in the refrigerator for up to 2 days. Reheat gently in a covered baking dish at 300°F until warmed through. Freezing reheated crab legs is not recommended because the texture becomes tough.
Oven Baked Snow Crab Leg FAQs
The best way to cook snow crab legs is to gently reheat them using steaming, boiling, or baking. The oven method works well because the crab warms evenly while butter and seasonings infuse the shells.
Steaming is generally better than boiling because it keeps the crab meat from becoming waterlogged. However, baking crab legs in the oven can add extra flavor through butter and seasoning.
Classic seafood seasonings like Old Bay, Cajun seasoning, garlic butter, and lemon work especially well with crab legs because they enhance the natural sweetness of the meat.
Yes, frozen snow crab legs can be baked directly from frozen. Increase the cooking time and keep the dish covered with foil.
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📖 Recipe
How to Cook Snow Crab Legs in the Oven (Garlic Butter)
Equipment
- Baking dish
- Small saucepan
- Kitchen shears
- Aluminum foil
Ingredients
Snow Crabs
- 2 to 2½ pounds snow crab legs
Cajun Garlic Butter
- 8 tablespoons unsalted butter (1 stick)
- 1 tablespoon olive oil
- 4 to 6 cloves garlic minced
- 1½ teaspoons Cajun seasoning
- 1 teaspoon Old Bay seasoning
- ½ teaspoon smoked paprika
- ½ teaspoon onion powder
- ½ teaspoon garlic powder
- Pinch of cayenne pepper optional
- 1 tablespoon fresh lemon juice
- 1 teaspoon Worcestershire sauce
- ½ teaspoon freshly ground black pepper
- salt to taste
For Serving
- Fresh parsley chopped
- Lemon wedges
- Extra melted butter optional
Instructions
- Preheat the oven to 400°F. Lightly grease a baking dish.
- If the crab legs are long, cut them into smaller sections using kitchen shears so they fit comfortably in the dish. For easier eating and better flavor absorption, cut a shallow slit along the top of the shell of each leg.
- Arrange the crab legs in the baking dish in a single layer or slightly overlapping.
- In a small saucepan over medium-low heat, melt the butter with the olive oil. Add the minced garlic and cook for about 30 seconds, just until fragrant.
- Stir in the Cajun seasoning, Old Bay, smoked paprika, onion powder, garlic powder, cayenne pepper, lemon juice, Worcestershire sauce, and black pepper. Let the butter gently simmer for 30-60 seconds so the spices bloom.
- Pour the seasoned garlic butter evenly over the crab legs, allowing some of the butter to run into the shell openings.
- Cover the baking dish tightly with foil to trap the steam. Bake for 12-15 minutes, until the crab legs are heated through.
- Carefully remove the foil and spoon the buttery pan juices over the crab legs. Sprinkle with chopped parsley. Serve immediately with lemon wedges and extra melted butter if desired.
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Video
Notes
- Slit the shells before baking so the garlic butter can reach the crab meat.
- Cover the baking dish tightly with foil to trap steam.
- Check the crab at 12 minutes to avoid overcooking.
- Spoon the butter from the pan back over the crab before serving.
Jami Powell says
This is one of our favorite seafood recipes. Its easy and delicious!