Prawn sandwiches

1.Combine mayonnaise, rind and juice in small bowl; whisk until smooth.

2.Shell and devein prawns; slice in half lengthways.

3.Remove and discard crusts from bread. Cut each slice in half diagonally.

4.Spread each bread triangle with 1 teaspoon of the mayonnaise mixture. Lay rocket across the middle of each triangle; place one prawn half on top of rocket. Fold triangles in half, bringing the two longest points together; secure with toothpicks.