Cover directly on the surface with cling film to prevent a skin from forming. Allow to cool completely to room temperature.
Beat the softened butter until creamy.
Stir the cooled pudding into the butter in portions until a light and airy cream is formed.Variants:
Chocolate buttercream: Fold in 2 tablespoons of cocoa powder or melted dark chocolate.
Fruit buttercream: Refine with pureed berries or jam.
Coffee cream: Dissolve 1 tsp of instant coffee in some hot water and stir in.
Tip: Butter and pudding should be at the same temperature, otherwise the cream may curdle!