Step 1

Make the creamy seafood mayonnaise sauce or cocktail sauce (also known as Marie Rose sauce) by combining the mayonnaise, ketchup, lemon juice, and Worcestershire sauce until smooth. Set aside.

Step 2

Chop the prawn or shrimp in small pieces. You may mix a little of the chopped prawn with some of the sauce.

Step 3

Spoon some sauce on the buttered side of the bread. Place the remaining chopped prawns. Add a layer of lettuce or other preferred greens (thinly sliced cucumber work well, too). Place the remaining slice on top. Slice diagonally, if desired.

Step 4

You may eat this right away or wrap in a cling film and chill for 30 minutes to 1 hour to allow the flavors to develop even more.

Step 5

Repeat with the remaining bread, chopped prawn and sauce. Enjoy.