Chocolate buttercream frosted yellow cupcakes with gold ball sprinkles on marble background.

Yellow Cupcakes with Chocolate Buttercream Frosting

Prep Time: 20 minutes
Cook Time: 15 minutes
Total Time: 35 minutes
Yields: 12 - 14 cupcakes
Calories: 441 kcal
Deliciously moist and fluffy yellow cupcakes topped with a creamy chocolate buttercream frosting!
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Ingredients

For the Cupcakes

  • 1 and 1/2 cups cake flour* 150g
  • 1 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 2 large eggs + 1 egg yolk room temperature
  • 3/4 cup caster/granulated sugar 150g
  • 2 teaspoons vanilla extract
  • 1/2 cup unsalted butter 115g, melted
  • 1/2 cup Greek style yogurt 120g

For the Frosting

  • 4 cups icing/powdered sugar 500g
  • 1 cup unsalted butter 226g, softened
  • 1/2 cup cocoa powder 50g
  • 2 - 3 tablespoons milk
  • 1 teaspoon vanilla extract

Instructions

For the Cupcakes

  1. Preheat the oven to 180C/350F/Gas 4. Line a 12-cup muffin tin with muffin cases, and set aside.
  2. Whisk together the flour, baking powder, baking soda, and salt. Set aside.
  3. Whisk together the eggs and egg yolk. Add the sugar, and whisk until combined. Add the vanilla extract, butter, and yogurt, and whisk until combined. Fold in the dry ingredients.
  4. Divide the batter evenly between the muffin cases, filling only 2/3 full.
  5. Bake for 14 - 16 minutes, or until a toothpick inserted into the centre comes out clean. Allow to cool for 5 minutes in the pan, before transferring them to a wire rack to cool completely before frosting.

For the Frosting

  1. Using a handheld or stand mixer, beat the butter until light and creamy. Add half the icing sugar, and beat until smooth. Add the cocoa powder, vanilla, and 1 - 2 tablespoons of milk, and beat until smooth. Add the remaining icing sugar, and beat until smooth. Add more milk to reach desired consistency. Transfer the frosting to a piping bag, and frost the cooled cupcakes.

Notes

*Make your own cake flour! Measure out 1 and 1/2 cups (190g) of plain/all-purpose flour, remove 3 tablespoons, and replace with 3 tablespoons of cornflour/cornstarch. Sift well.

Leftover cupcakes can be stored, covered tightly, in the fridge for up to 3 days. Frosted or unfrosted cupcakes can be frozen for up to 3 months. Thaw overnight in the fridge. Cupcakes can be made 1 day in advance, covered, and stored at room temperature. Cover the frosting, and store in the fridge until ready to use.

The calories are an estimate only.