Gently wash the cherries and pat dry with kitchen paper. Tie the stalks together with fine string to form clusters of four or five cherries.
Make up the batter mix according to the instructions on the packet, beating in the egg. Pour the vegetable oil into the deep fryer or large heavy pan and heat to 375.
Working in batches, half dip each cherry cluster into the batter and then carefully drop the cluster into the hot oil. Fry for 3-4 minutes, or until golden brown. Remove the deep fried cherries with a wire mesh skimmer or slotted spoon and drain on a wire rack over crumpled paper and serve immediately.
(You can sprinkle these cherries with sugar cinnamon and serve with vanilla ice cream.