You may use frozen shrimp, just make sure to thaw frozen shrimp completely before cooking. Pro tip: If possible, choose wild-caught shrimp; wild-caught shrimp have better flavor and color than ...

which many recipes call for. It was the same routine: Bring a pot of water to a boil, salt, and add the shrimp. Cook for maybe 5 minutes. Remove the shrimp and plunge in ice water to stop the cooking.