Drain the apricots on a sieve. Collect the juice. Peel and slice the bananas and kiwis. Cut the kiwi slices in half. Quarter the apricots. Mix 4-5 tablespoons apricot juice, Cointreau, 1 tablespoon lemon juice and 1 tablespoon sugar. Put the fruits in a bowl and pour the juice mixture over them.
Mix carefully and leave to marinate for about 30 minutes. Mix sour cream, remaining lemon juice and sugar. Arrange fruit salad on plates. Place 1-2 tablespoons of sour cream and 1 teaspoon of jam on each plate. Spread the jam lightly with a wooden stick. Serve decorated with kiwi slices and lemon balm as desired