Divide the lettuce between 4 small serving dishes (traditionally, stemmed glass ones, but any
small dishes will be fine).
Mix the mayonnaise, cream and tomato ketchup together in a bowl. Add the Tabasco sauce and lemon
juice and season well with salt and pepper.
Divide the peeled prawns equally between the dishes and pour over the dressing. Cover and chill
in the refrigerator for 30 minutes.
Sprinkle a little paprika over the cocktails and garnish each dish with a prawn and a lemon
slice. Serve the cocktails with slices of brown bread and butter.