Name: Mary Berry Buttercream Icing for Cupcakes Recipe
Prep time: 15 min
Total time: 15 min
Ingredients: 175g unsalted butter, softened at room temperature; 350g icing sugar, sifted; 1 tsp vanilla extract; 2 tbsp whole milk, at room temperature; pinch of fine salt; sprinkles or edible decorations, optional; 12 baked cupcakes, fully cooled

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This Mary Berry buttercream icing is smooth, silky and holds its shape beautifully when piped onto a cupcake. It whips up pale and fluffy, with a rounded vanilla sweetness that never feels heavy or gritty on the tongue.

This version is forgiving for beginners, as it uses simple pantry staples and a straightforward method that avoids the common pitfalls of split or overly stiff icing. It works equally well for a birthday batch, a school bake sale or a quiet Sunday of cupcake making. From start to finish, it is ready in around 15 minutes.

Ingredients

For the buttercream

175g unsalted butter, softened at room temperature
350g icing sugar, sifted
1 tsp vanilla extract
2 tbsp whole milk, at room temperature
Pinch of fine salt

To finish

Sprinkles or edible decorations, optional
12 baked cupcakes, fully cooled

How to Make Mary Berry Buttercream Icing for Cupcakes

Soften the butter: Beat the butter alone in a large bowl for around 2 minutes until pale and creamy, this gives the icing a lighter texture before the sugar goes in.
Add the icing sugar gradually: Sift in a third of the icing sugar and beat on a low speed, then repeat in two more additions, scraping down the bowl each time.
Bring in the vanilla and salt: Add the vanilla extract and a small pinch of salt, then beat again briefly to combine, the salt balances the sweetness rather than making the icing taste salty.
Loosen with milk: Add the milk a teaspoon at a time, beating well after each addition, this stops the mixture from becoming too runny too quickly.
Beat until light: Whisk the buttercream on a higher speed for 2 to 3 minutes until it turns noticeably paler and fluffier in texture.
Check the consistency: The icing should hold a soft peak on the beater without sliding straight off, if it feels stiff, add a further half teaspoon of milk.
Fill a piping bag: Spoon the buttercream into a piping bag fitted with a star nozzle, twisting the top to push out any trapped air.
Pipe onto the cupcakes: Pipe in a circular motion starting from the outer edge and working inwards, finishing with a gentle upward flick in the centre.
Decorate and set: Scatter over sprinkles or decorations straightaway while the buttercream is still soft, so they stick without sliding off.

Tips for the Best Mary Berry Buttercream Icing for Cupcakes

Why has my buttercream gone grainy?

This usually happens when the icing sugar has not been sifted properly or the butter was too cold, beat the mixture for a further minute on a higher speed to smooth it out.

Why is my buttercream too runny to pipe?

The butter may have been too soft or too much milk was added, chill the bowl in the fridge for 10 minutes then beat again briefly before piping.

How do I stop the buttercream from splitting?

Add the icing sugar slowly rather than all at once, and make sure the butter and milk are both at room temperature before mixing.

Why does my piped buttercream lose its shape quickly?

Warm kitchens soften buttercream fast, so pipe the cupcakes just before serving or keep them in a cool room until needed.

How do I get really smooth sides when piping?

Hold the piping bag at a steady right angle to the cupcake and keep even pressure throughout, stopping and releasing pressure before lifting away.

Serving Suggestions

Serve alongside a pot of tea for an afternoon gathering
Pair with fresh berries on the side for a lighter finish
Add a light dusting of cocoa powder for a coffee-shop style presentation
Present on a tiered stand for birthdays or celebrations
Pipe onto warm cupcakes only once fully cooled, to keep the icing structure intact

Storage

Room temperature

Keep iced cupcakes in an airtight container at room temperature for up to 2 days.

Refrigerator

Store in an airtight container in the fridge for up to 5 days, and bring to room temperature for around 30 minutes before serving for the best texture.

Freezing

Freeze un-iced cupcakes wrapped tightly in cling film for up to 2 months, or freeze the buttercream separately in a sealed container. Defrost overnight in the fridge, then re-whip the buttercream briefly before piping.

Nutrition

Calories: 210 kcal
Carbohydrates: 24g
Protein: 1g
Fat: 13g
Saturated Fat: 8g
Sodium: 45mg

Nutrition values are estimates and may vary depending on the specific ingredients used and serving size.

FAQs

Can I use salted butter instead of unsalted butter?

Yes, simply leave out the added pinch of salt so the icing does not taste overly salty.

Can I make this buttercream ahead of time?

Yes, it can be made up to 2 days in advance and kept covered in the fridge, just re-whip briefly before piping.

Can I freeze buttercream icing?

Yes, it freezes well for up to 2 months in a sealed container, defrost in the fridge overnight and beat again before use.

What if I don’t have a piping bag?

A spoon works perfectly well for spreading the buttercream in soft swirls across the top of each cupcake.

Can I flavour this buttercream differently?

Yes, replace the vanilla extract with lemon zest, melted cooled chocolate, or a spoonful of good jam for a different flavour.

Conclusion

This Mary Berry buttercream icing for cupcakes is a dependable base recipe that turns a simple batch of cupcakes into something worth sharing. It pipes cleanly, tastes balanced rather than sickly sweet, and holds its shape well whether the occasion is a birthday party or a weekday treat.

This recipe makes enough to generously top 12 cupcakes. Share your results in the comments below or pass this recipe on to a fellow baker who loves a reliable buttercream. If you enjoyed this, you might also like mary berry dorset apple traybake recipe.