1.In a medium saucepan, combine raspberries, water and sugar. Stir over a low heat until sugar dissolves. Process until smooth. Strain into a large jug.
2.In a small jug, whisk gelatine into boiling water with a fork until dissolved. Whisk into raspberry mixture. Chill 20 minutes, until beginning to set.
3.Arrange single layer of sponge cake in base of a large serving bowl, trimming to fit. Drizzle with schnapps. Pour jelly over. Chill 1 hour until firm.
4.Arrange peaches and raspberries over jelly. Spread custard over. Top with dollops of cream. Garnish with toasted flaked almonds and mint leaves.