Cassis spritz
Make the most of that crème de cassis lurking at the back of the cupboard. With white wine and Cynar (a bitter herbal liqueur), it's a wonderful summer drink
Divide the lychee juice between four champagne flutes, then add ¼ tsp rosewater to each.
Divide the prosecco between the glasses, then top up with soda water. Drop a raspberry into each glass, then serve.