Keto Garlic Butter Crab Legs

Featured in: Weeknight Dinners

Indulge in restaurant-quality crab legs at home with this simple preparation. The king crab legs are brushed with a fragrant garlic butter infused with parsley, smoked paprika, and red pepper flakes, then baked until the butter bubbles and the seafood is perfectly heated.

Fresh lemon wedges provide a bright contrast to the rich, savory butter sauce. This dish fits perfectly into a keto lifestyle while delivering impressive flavor and presentation.

The entire meal comes together in just 20 minutes, making it ideal for weeknight dinners or special occasions. Serve with cauliflower mash or crisp greens for a complete low-carb meal.

Updated on Wed, 11 Feb 2026 01:31:08 GMT
Golden-baked Keto Garlic Butter Crab Legs glistening with garlic butter and fresh parsley on a platter, with lemon wedges on the side for a bright squeeze. Pin it
Golden-baked Keto Garlic Butter Crab Legs glistening with garlic butter and fresh parsley on a platter, with lemon wedges on the side for a bright squeeze. | vectorbaker.com

There's something undeniably luxurious about crab legs drenched in garlic butter. This Keto Garlic Butter Crab Legs recipe transforms your dining room into a high-end seafood restaurant in just 20 minutes. The delicate sweetness of king crab meat pairs perfectly with the rich, aromatic garlic butter that seeps into every crevice. Each bite delivers a succulent taste of the ocean, enhanced by the savory butter sauce with just the right hint of heat from red pepper flakes.

Golden-baked Keto Garlic Butter Crab Legs glistening with garlic butter and fresh parsley on a platter, with lemon wedges on the side for a bright squeeze. Pin it
Golden-baked Keto Garlic Butter Crab Legs glistening with garlic butter and fresh parsley on a platter, with lemon wedges on the side for a bright squeeze. | vectorbaker.com

The beauty of this dish lies in its simplicity. The garlic butter sauce, infused with fresh parsley and a hint of smoked paprika, elevates the naturally sweet crab meat to new heights. A squeeze of fresh lemon adds brightness that cuts through the richness, creating the perfect balance. While this dish feels indulgent, it fits perfectly into a ketogenic lifestyle with its high fat content and minimal carbs.

Ingredients

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  • 1.5 lbs (680 g) king crab legs, thawed if frozen
  • 6 tbsp (85 g) unsalted butter
  • 4 cloves garlic, minced
  • 1 tbsp fresh parsley, finely chopped
  • 1/2 tsp smoked paprika
  • 1/4 tsp crushed red pepper flakes (optional)
  • 1/2 tsp sea salt
  • 1/4 tsp freshly ground black pepper
  • 1 large lemon, cut into wedges
  • 2 tbsp fresh parsley, chopped (for garnish)

Instructions

Prepare the oven
Preheat oven to 400°F (200°C). Line a baking sheet with foil for easy cleanup.
Arrange the crab legs
Place the crab legs on the prepared baking sheet.
Make the garlic butter sauce
In a small saucepan over medium heat, melt the butter. Add the minced garlic and sauté for 1–2 minutes, until fragrant but not browned. Stir in 1 tbsp parsley, smoked paprika, red pepper flakes (if using), salt, and black pepper.
Coat the crab legs
Brush the garlic butter generously over the crab legs, reserving a little for serving.
Bake
Bake the crab legs for 8–10 minutes, until heated through and the butter is bubbling.
Serve
Transfer crab legs to a serving platter. Drizzle with reserved garlic butter and sprinkle with fresh parsley. Serve immediately with lemon wedges on the side.

Zusatztipps für die Zubereitung

When working with crab legs, you might find it helpful to use kitchen scissors to cut through the shell before baking. This makes it easier to extract the meat once cooked. For larger crab legs, consider cutting them into smaller sections to ensure they heat evenly. The garlic butter sauce can be prepared up to a day ahead and gently reheated when needed. Just be careful not to burn the garlic when reheating, as it can quickly turn bitter.

Varianten und Anpassungen

This recipe works beautifully with other types of crab legs. As noted in the original recipe, snow crab makes an excellent substitute for king crab. For a different flavor profile, try adding a tablespoon of white wine to the garlic butter sauce, or incorporate fresh herbs like thyme or dill. If you enjoy spice, increase the red pepper flakes or add a dash of cayenne. For a dairy-free version, substitute ghee or a high-quality olive oil for the butter, though the flavor profile will change slightly.

Serviervorschläge

Serve these garlic butter crab legs as the star of your meal with simple keto-friendly sides. A crisp green salad with a lemon vinaigrette complements the richness of the crab perfectly. For a more substantial meal, pair with cauliflower mash or roasted asparagus drizzled with olive oil. As suggested in the recipe notes, a glass of chilled Sauvignon Blanc makes an excellent beverage pairing, cutting through the rich butter with its bright acidity. For a non-alcoholic option, sparkling water with a slice of lemon offers refreshing contrast.

Close-up view of Keto Garlic Butter Crab Legs dripping in rich butter sauce, garnished with parsley and served next to vibrant lemon wedges on a platter. Pin it
Close-up view of Keto Garlic Butter Crab Legs dripping in rich butter sauce, garnished with parsley and served next to vibrant lemon wedges on a platter. | vectorbaker.com
Close-up view of Keto Garlic Butter Crab Legs dripping in rich butter sauce, garnished with parsley and served next to vibrant lemon wedges on a platter. Pin it
Close-up view of Keto Garlic Butter Crab Legs dripping in rich butter sauce, garnished with parsley and served next to vibrant lemon wedges on a platter. | vectorbaker.com

This Keto Garlic Butter Crab Legs recipe proves that following a keto lifestyle doesn't mean sacrificing flavor or luxury. With just 20 minutes of effort, you can create a restaurant-worthy seafood experience in your own kitchen. The combination of sweet crab meat and savory, aromatic garlic butter creates a memorable meal that's perfect for both weeknight dinners and special celebrations. Remember to have plenty of napkins on hand - this deliciously messy dish is best enjoyed with your fingers!

Recipe FAQs

How do I know when the crab legs are done?

The crab legs are ready when they're heated through and the butter sauce is bubbling, typically after 8-10 minutes in the oven. Avoid overcooking as the meat can become tough.

Can I use frozen crab legs?

Yes, simply thaw the crab legs completely in the refrigerator overnight or under cold running water before cooking. Pat them dry before brushing with the garlic butter.

What's the best way to crack the legs?

Use kitchen shears to cut through the shell, or a crab cracker to break the legs into segments. A small seafood fork helps extract the meat from the shell.

Can I grill these instead of baking?

Absolutely. Grill the crab legs over medium-high heat for 5-6 minutes, brushing with garlic butter halfway through. The smoky flavor from grilling complements the butter beautifully.

What wine pairs well with this dish?

A crisp Sauvignon Blanc, Chardonnay, or Pinot Grigio complements the rich butter and sweet crab meat beautifully. The acidity cuts through the richness while enhancing the seafood flavors.

How should I store leftovers?

Store leftover crab meat in an airtight container in the refrigerator for up to 2 days. Reheat gently in the microwave or steam briefly to avoid drying out the meat.

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Keto Garlic Butter Crab Legs

Tender crab legs with garlic butter and lemon. Ready in 20 minutes.

Time to prep
10 minutes
Time to cook
10 minutes
Overall time
20 minutes
Created by Jack Sanchez


Skill level Easy

Cuisine type American

Makes 4 Portions

Dietary details No gluten, Low in carbs

What you need

Seafood

01 1.5 lbs king crab legs, thawed if frozen

Garlic Butter Sauce

01 6 tablespoons unsalted butter
02 4 cloves garlic, minced
03 1 tablespoon fresh parsley, finely chopped
04 1/2 teaspoon smoked paprika
05 1/4 teaspoon crushed red pepper flakes
06 1/2 teaspoon sea salt
07 1/4 teaspoon freshly ground black pepper

To Serve

01 1 large lemon, cut into wedges
02 2 tablespoons fresh parsley, chopped for garnish

Directions

Step 01

Prepare Baking Sheet: Preheat oven to 400°F. Line a baking sheet with aluminum foil for easy cleanup.

Step 02

Arrange Crab Legs: Place the crab legs on the prepared baking sheet.

Step 03

Create Garlic Butter Sauce: In a small saucepan over medium heat, melt the butter. Add the minced garlic and sauté for 1-2 minutes until fragrant but not browned. Stir in parsley, smoked paprika, red pepper flakes, salt, and black pepper.

Step 04

Brush With Garlic Butter: Brush the garlic butter generously over the crab legs, reserving a portion for serving.

Step 05

Bake Crab Legs: Bake for 8-10 minutes until heated through and the butter is bubbling.

Step 06

Plate and Finish: Transfer crab legs to a serving platter. Drizzle with reserved garlic butter and sprinkle with fresh parsley.

Step 07

Serve: Serve immediately with lemon wedges on the side.

Tools you'll need

  • Baking sheet
  • Aluminum foil
  • Small saucepan
  • Pastry brush
  • Chef's knife
  • Cutting board

Allergy advice

Always check each ingredient for allergens and talk to a healthcare pro if you’re unsure.
  • Contains shellfish (crab)
  • Contains dairy (butter)

Nutrition info (per portion)

These values are estimates for your reference. They’re not a substitute for professional medical advice.
  • Calorie count: 320
  • Fat content: 21 grams
  • Carbohydrates: 3 grams
  • Proteins: 28 grams

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