Melba sauce 
noun [mass noun]
A sweet sauce made from pureed raspberries thickened with icing sugar: the raspberry sorbet was served with a Melba sauce...
- Garnish with fresh whipped cream, and drizzle with Raspberry Melba sauce on top of the pancake sundae.
- Coat with a tablespoon of Melba sauce and decorate with a rosette of cream and almonds.
- Spoon on a large spoon of the Melba sauce - allowing it to run down over the ice cream and peaches.