Mary Berry Buttercream Icing is a classic, easy-to-make frosting made with softened butter, icing sugar, and a splash of milk for smoothness. It’s whipped until light and fluffy, creating the perfect topping for cupcakes, birthday cakes, or sandwich sponges.
125g softened unsalted butter
250g icing sugar (sieved)
1–2 tbsp milk
1 tsp vanilla extract (optional)
A pinch of salt (optional, enhances flavour)
Beat the butter: Whip softened butter for 2–3 minutes until pale and creamy.
Add icing sugar gradually: Mix in icing sugar a little at a time to avoid lumps.
Pour in milk: Add 1 tablespoon first to loosen the icing, then adjust texture as needed.
Add vanilla: Mix in vanilla extract for a classic flavour.
Whip until fluffy: Continue mixing until the buttercream becomes light and airy.
Adjust consistency: Add more icing sugar to thicken or a splash of milk to soften.
Pipe or spread: Use immediately or refrigerate before piping for better definition.