I like this recipe because it is incredibly quick from start to finish and requires very little prep. I appreciate that the Instant Pot takes the guesswork out of cooking crab legs, and I love how the butter sauce can be adjusted to taste. This is the kind of recipe I make when I want something impressive without spending all evening in the kitchen.
Ingredients
(Note: All ingredient amounts are listed in the recipe card below.)
For the Crab Legs 4 snow crab leg clusters see Notes 1 cup water
For the Butter Sauce ⅓ cup unsalted butter ½ teaspoon minced garlic 1 teaspoon Old Bay seasoning ½-1 tablespoon lemon juice to taste
Directions
I start by pouring 1 cup of water into the Instant Pot, then fitting the trivet inside and placing all four crab leg clusters on top. I secure the lid with the vent in the sealing position and set the Instant Pot to Manual High Pressure for 2 minutes.
Once the cook time is finished, I carefully quick release the steam and remove the lid. I serve the crab legs immediately with the butter sauce or with plain melted butter if I want to keep things simple.
For the butter sauce, I heat a small saucepan over medium-low heat and add the butter, letting it melt completely. Once it begins to simmer, I remove it from the heat and whisk in the minced garlic, Old Bay seasoning, and lemon juice to taste.
Servings and Timing
I usually serve this recipe as a main course for 4 people. The prep time is about 15 minutes, the cook time is just 5 minutes, and the total time comes to approximately 20 minutes from start to finish.
Variations
When I use king crab legs instead of snow crab, I cook them on Manual High Pressure for 5 minutes. If I need a dairy-free option, I swap the butter for a dairy-free alternative. I also like adjusting the Old Bay and lemon juice depending on whether I want the sauce more savory or more bright and citrusy.
Storage/Reheating
I find crab legs are best enjoyed right away, but if I have leftovers, I store them in an airtight container in the refrigerator for up to 2 days. To reheat, I gently steam them or warm them in the Instant Pot with a small amount of water to avoid drying them out.
FAQs
Can I cook frozen crab legs in the Instant Pot?
I often cook them straight from frozen since they are usually pre-cooked, and the timing stays the same.
Are crab legs already cooked?
Most store-bought crab legs are pre-cooked and just need to be reheated.
Do I need to thaw crab legs first?
I usually do not thaw them because the Instant Pot handles frozen crab legs very well.
Can I stack the crab legs?
I stack them slightly as long as they fit on the trivet without blocking the lid.
What if my crab legs are very large?
I increase the cook time slightly, especially if they are king crab legs.
Can I skip the trivet?
I prefer using the trivet so the crab legs steam instead of sitting in water.
Is Old Bay seasoning spicy?
I find it more savory than spicy, but I adjust the amount if I want a milder sauce.
Can I make the butter sauce ahead of time?
I usually make it fresh, but I can reheat it gently if needed.
What can I serve with crab legs?
I like serving them with corn on the cob, potatoes, or a simple salad.
How do I know the crab legs are ready?
I know they are ready when they are heated through and steaming hot.
Conclusion
I love how these Instant Pot crab legs make it easy to enjoy a luxurious seafood dinner without the fuss. With minimal effort and a simple butter sauce, this recipe has become one I turn to whenever I want something fast, flavorful, and satisfying.
Tender, perfectly heated crab legs made quickly in the Instant Pot and served with a rich Old Bay butter sauce for an easy yet impressive seafood dinner.
Ingredients
4 snow crab leg clusters
1 cup water
1/3 cup unsalted butter
1/2 teaspoon minced garlic
1 teaspoon Old Bay seasoning
1/2–1 tablespoon lemon juice (to taste)
Instructions
Pour 1 cup of water into the Instant Pot and place the trivet inside.
Arrange the crab leg clusters on top of the trivet.
Secure the lid, set the valve to sealing, and cook on Manual High Pressure for 2 minutes.
Once cooking is complete, carefully quick release the pressure and remove the lid.
Serve the crab legs immediately with butter sauce or plain melted butter.
To make the butter sauce, melt the butter in a small saucepan over medium-low heat.
Remove from heat and whisk in the garlic, Old Bay seasoning, and lemon juice to taste.
Notes
Most crab legs are pre-cooked and only need to be reheated.
Frozen crab legs can be cooked directly without thawing.
Increase cook time to 5 minutes for king crab legs.
Use the trivet to ensure the crab legs steam instead of boiling.