Use shrimp that are already cooked and peeled or buy fresh shrimp and cook and peel them. Chop shrimp in a blender or food processor. Blend in enough mayonnaise to moisten (1/2 to 3/4 cup). Stir in 2 tablespoons each grated onion, Worcestershire sauce and lemon juice. Add 1 teaspoon salt and 1/8 teaspoon dried red pepper. Transfer to a serving bowl. Cover and refrigerate for a few hours to blend flavors.

Serve with buttery crackers or water biscuits.