2 tablespoons concentrated liquid shrimp and crab boil (such as Zatarain's®)
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2 tablespoons seafood seasoning (such as Old Bay®)
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2 pounds live crawfish, rinsed
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1 pound bite-sized red potatoes (such as Ruby Sensations®)
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3 ears corn, shucked and cut into thirds, or more to taste
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1 (12 ounce) package andouille sausage, sliced
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1 tablespoon seafood seasoning (such as Old Bay®)
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2 cups water
Instructions
Combine water, dry crab boil, and seafood seasoning in a multifunctional pressure cooker, such as an Instant Pot. Add live crawfish. Close and lock the lid. Select High pressure, according to the manufacturer's instructions; set timer for 0 minutes. Allow 15 minutes for pressure to build. As the pressure builds it will steam crawfish.
Release pressure carefully using the quick-release method according to the manufacturer's instructions, about 2 minutes. Carefully pour crawfish and liquid into a large bowl and let sit for 30 minutes to soak while you prepare the rest of the meal.
Add potatoes, corn, andouille sausage, and 1 tablespoon seafood seasoning to the pot. Pour in water and stir until evenly combined. Close and lock the lid.
Select High pressure according to the manufacturer's instructions; set timer for 5 minutes. Allow 15 minutes for pressure to build.
Release pressure carefully using the quick-release method according to the manufacturer's instructions, about 2 minutes. Divide mixture between 4 plates and serve with crawfish.