3 pounds frozen cooked king crab legs
One 6-ounce box seafood seasoning, such as Old Bay, plus additional as needed
1 stick (8 tablespoons) unsalted butter
Depending on the size of your stockpot, you may need to add more water to cover the crab legs. If that is the case, add 1/4 cup more seafood seasoning and 1 more lemon for every additional 2 quarts of water.