Kirstie Allsopp’s Smarties cupcakes recipe

(294 ratings)

Smarties cupcakes
(Image credit: Studio/Getty Images)
  • healthy
Preparation Time10 mins
Cooking Time10 mins (may need an extra 5 mins)
Total Time20 mins
Cost RangeCheap
Nutrition Per PortionRDA
Calories282 Kcal14%
Sugar31.9 g35%
Fat12.1 g17%
Saturated Fat4.5 g23%
Protein4.3 g9%
Carbohydrates38.4 g15%

The kids are going to love making these quick Smarties cupcakes ready in just 20 minutes, four simple steps 

These easy Smarties cupcakes are made by Kirstie Allsopp as demonstrated in the video below. These cupcakes are made with cocoa powder and condensed milk. Kirstie says the condensed milk creates “a smooth batter and gives the cupcakes a moist finish.” Pipe a swirl of fudgy chocolate buttercream and finish with plenty of Smarties.


For the cupcakes:

  • 100g (3 1/2oz) plain flour
  • 25g (1oz) cocoa powder
  • 250g (9oz) condensed milk
  • 1 egg
  • 1/2tsp vanilla extract
  • 85g (3oz) 70% fat buttery spread
  • 1 1/2tsp baking powder

For the frosting and Smarties decoration:

  • 200g (7oz) icing sugar
  • 2tbsp cocoa powder
  • 55g (2oz) 70% fat buttery spread, softened
  • Few drops vanilla extract
  • 1-2tbsp condensed milk (try Carnation condensed milk)
  • 2 boxes mini smarties, to decorate

You will also need:

  • 12-hole muffin tin
  • 12 cupcake or muffin cases




  1. Preheat the oven to 180°C/160°C fan/gas 4 and line a 12-hole muffin tin with cupcake or muffin cases.
  2. Place the flour, cocoa powder, condensed milk, egg, vanilla extract, buttery spread and baking powder in a bowl and beat with an electric hand mixer for 2 - 3 mins until pale and fluffy.
  3. Spoon the cupcake mixture into the cases and bake for approximately 15 - 18 mins until springy to the touch and golden brown. Cool slightly then transfer to a cooling wire rack to cool completely.
  4. For the frosting and decoration: Beat the icing sugar, cocoa powder, buttery spread and vanilla with enough condensed milk to bring the mixture to a soft consistency. Spread or pipe onto the cakes. Decorate with the smarties.

Top tips for making Smarties cupcakes

Let your imagination run wild with toppings for your cupcakes - there are loads of great decorations in the shops or use chopped nuts, banana chips, curls of chocolate or silver balls. You could even use other chocolate bars too like chocolate buttons or M&M’s.

You might also like…

Classic chocolate cupcake recipe (opens in new tab)

Basic cupcake recipe (opens in new tab)

Mary Berry’s chocolate cake recipe (opens in new tab)

Jessica Dady
Senior Content Editor

Jessica Dady is Senior Content Editor at and has over 10 years of experience as a digital journalist, specialising in all things food, recipes, and SEO. From the best food hampers to cookbooks, from the best cake stands to baking sets, Jessica has a wealth of knowledge when it comes to must-have food products. A passionate baker, she spends much of her time creating celebration cakes for friends and family - particularly for her two lucky children.