How To Steam Crab Legs


Learn how to steam crab legs with this easy recipe that delivers sweet, succulent meat in just minutes. This simple yet elegant method works perfectly with Alaskan King Crab, Snow Crab, or Dungeness Crab.

Skip the crowded all-you-can-eat crab legs buffet and make steamed crab legs at home, in under 15 minutes. Pair your perfectly steamed legs with lemon wedges, rich garlic butter dipping sauce, or a bold Cajun dipping sauce for a restaurant-quality meal.

Whether you steam crab legs, bake crab legs, or grill crab legs, these methods all bring out their naturally sweet, tender meat—making them perfect for a simple yet satisfying seafood dinner.

How Long to Steam Crab Legs

Steaming crab legs takes just 4-5 minutes of cook time for smaller crabs and 10-14 minutes for larger crabs. The total time depends on the type of crab and whether it’s frozen, thawed, or fresh.

Set your timer for the lower end of the steaming range and check early to avoid overcooking.

Alaskan King Crab Legs – King crab legs are thick and meaty, so they need a little extra time to heat through.

  • Frozen (pre-cooked): 6–8 minutes
  • Thawed (pre-cooked): 4–6 minutes
  • Fresh (uncooked): 10–12 minutes

Snow Crab Legs – Snow crab legs are thinner than king crab, so they heat faster.

  • Frozen (pre-cooked): 5–7 minutes
  • Thawed (pre-cooked): 4–5 minutes
  • Fresh (uncooked): 8–10 minutes

Dungeness Crab (legs or halves) – Dungeness crabs are often sold whole or halved, so steaming time depends on size.

  • Frozen (pre-cooked): 7–9 minutes
  • Thawed (pre-cooked): 5–7 minutes
  • Fresh (uncooked): 12–14 minutes

Blue Crab (whole or legs) – Blue crabs are typically smaller, so they steam faster when whole.

  • Frozen (pre-cooked): 5–6 minutes
  • Thawed (pre-cooked): 4–5 minutes
  • Fresh (uncooked): 10–12 minutes

When steaming crab legs, check the flesh for color to ensure it’s heated through. It should be pearly white and opaque when ready to go. Do not go by the exterior color, as it’s not an accurate indication of temperature.

Steamed Crab Legs

As you can see in the above photo, I’m using the same budget-friendly steamer basket I often use for my Instant Pot recipes—I like getting the most out of my kitchen tools by using them in different ways.

If you don’t have a steamer basket or strainer insert, use a colander that fits inside your large pot. Ideally, the lid can close snugly.

If the lid doesn’t seal perfectly, you can use aluminum foil to help trap the steam. Be cautious when peeling back the foil, as the steam can be extremely hot.

Seasoning Options

There are a few easy ways to add extra flavor to steamed crab legs. If you’re going for a Cajun vibe, consider using Cajun seasoning, such as Old Bay Seasoning, as a classic choice. Otherwise, a good shake of salt and pepper does the trick.

And if you’re serving them with a tasty dipping sauce, you don’t need much else—they’ll be full of flavor as is. 

Crab Leg Sauce

Hands down, there are two juicy crab sauce recipes we prefer when making snow crab clusters:

Serving Tips

  • Use a crab cracker, nutcracker, mallet, or even sharp kitchen shears to open the shells—avoid using a knife for safety.
  • Toss leftover crab meat into rich dishes like Kani Salad or Lobster Ravioli. Here’s a list of over 20 crab recipes that can also utilize leftover crab meat. 
  • Serving tip: Plan for about 12 oz. of Alaskan King Crab Legs or 16 oz. of Snow Crab Legs per person.

More Seafood Recipes

Here are a few more popular seafood recipes to check out:

How to Steam Crab Legs

Skip the crowded all-you-can-eat crab legs buffet and learn how to steam crab legs at home, in under 15 minutes. Pair your perfectly steamed legs with lemon wedges, rich garlic butter dipping sauce, or a bold Cajun dipping sauce for a restaurant-quality meal.
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Prep Time: 5 minutes minutes

Cook Time: 10 minutes minutes

Total Time: 15 minutes minutes

Servings: 2 people

Calories: 381kcal

Author: Darcey Olson

Cost: $20

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Ingredients

Crab Legs

  • 1½-2 lbs crab legs (*Note 1)
  • melted butter and lemon slices, for serving

Instructions

  • Add 1–2″ of water to a large pot. Add lemon wedges for extra flavor, if desired.

  • Place a steamer basket or colander over the water so the crab legs won’t be submerged.

  • Once the water is boiling, place the crab legs in the steamer basket and cover. If the lid doesn’t close snuggly, cover it with foil.

  • Steam for 4–5 minutes for smaller pre-cooked crab legs. *Note 2Steam for 4–6 minutes minutes for larger pre-cooked crab legs.For frozen or raw crab legs, see the chart in the notes section. *Note 3
  • Use tongs to remove the crab legs. Serve hot or cold with lemon wedges, butter, and dipping sauces.

Notes

Note 1 – Set the timer for the low end of the time range and check to see how the legs are doing at that time. You don’t want to overcook them. Note 2 – The meat will be pearly white and opaque when ready to go. Note 3 – cooking times for the various crab types. Alaskan King Crab Legs 
  • Frozen (pre-cooked): 6–8 minutes
  • Thawed (pre-cooked): 4–6 minutes
  • Fresh (uncooked): 10–12 minutes
Snow Crab Legs
  • Frozen (pre-cooked): 5–7 minutes
  • Thawed (pre-cooked): 4–5 minutes
  • Fresh (uncooked): 8–10 minutes
Dungeness Crab
  • Frozen (pre-cooked): 7–9 minutes
  • Fresh (uncooked): 12–14 minutes
Blue Crab
  • Frozen (pre-cooked): 5–6 minutes
  • Fresh (uncooked): 10–12 minutes

Nutrition

Calories: 381kcal | Protein: 83g | Fat: 3g | Saturated Fat: 0.4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 0.4g | Cholesterol: 191mg | Sodium: 3792mg | Potassium: 925mg | Vitamin A: 109IU | Vitamin C: 32mg | Calcium: 209mg | Iron: 3mg



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