Cajun Boiled Crab with Garlic Butter Sauce

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A flavorful Cajun seafood boil featuring fresh crab simmered in a spicy broth and served with a rich garlic butter dipping sauce. This cajun-inspired seafood ready in about 30 minutes pairs pounds live crab, water, Cajun seasoning for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.

★ 4.1 (14 ratings) Prep: 10 min Cook: 20 min Serves 4 Cajun cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: In a large stockpot, bring 6 cups of water to a boil over high heat. Add 3 tablespoons of Cajun seasoning, 2 bay leaves, and 1 tablespoon of salt to the water; stir to combine and let it simmer for 5 minutes to infuse.
  2. Step 2: Add 2 pounds of live crab to the boiling seasoned water, cover, and cook for 12-15 minutes until the crab shells turn bright red and the meat is cooked through.
  3. Step 3: Meanwhile, melt 1/2 cup of unsalted butter in a small saucepan over medium heat. Add 6 minced garlic cloves and cook for 2 minutes until fragrant but not browned.
  4. Step 4: Stir in the juice of 1 lemon, 1 teaspoon of black pepper, and 2 tablespoons of chopped fresh parsley into the garlic butter. Keep warm.
  5. Step 5: Drain the crab well and serve immediately with the warm garlic butter sauce for dipping, garnished with extra parsley if desired.

Frequently asked questions

How long does Cajun Boiled Crab with Garlic Butter Sauce take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Cajun Boiled Crab with Garlic Butter Sauce?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep pounds live crab from drying out.

Can I substitute ingredients in Cajun Boiled Crab with Garlic Butter Sauce?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Cajun Boiled Crab with Garlic Butter Sauce for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Cajun Boiled Crab with Garlic Butter Sauce?

Cajun seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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