Mix the contents of a bag in a small saucepan with 500 ml cold water. Leave to swell for 5 minutes. Add 4 tablespoons of sugar, heat while stirring until everything is dissolved (do not boil!).
Pour into glasses and chill. Take 2 tablespoons of the cold milk and stir in the sauce powder and the remaining sugar. Boil up the remaining milk. Remove the milk from the heat, add the sauce powder and bring to the boil while stirring.
Season to taste with amaretto. Roast the almonds in a pan without fat until golden brown. Add vanilla sauce to the jelly. Serve garnished with the roasted almonds.