Peel and devein shrimp. (see "how to" page) Bring 2 quarts of water to a vigorous boil. Drop the shrimp into the water. Bring back to a boil and shrimp will be done if they are small. cook for 1 minute for medium shrimp, 2 minutes for large shrimp and 2 1/2 minutes for colossal shrimp.
Immediately plunge shrimp into an ice water bath to stop the cooking and give them the perfect texture. Drain and chill.