Ingredients:

  • 1 cup (120g) all-purpose flour (plain flour), spooned and leveled
  • ½ cup (50g) unsweetened cocoa powder
  • ¾ teaspoon baking powder
  • ¾ teaspoon baking soda (bicarbonate of soda)
  • ¼ teaspoon salt
  • ½ cup (113g) unsalted butter, softened
  • 1 cup (200g) granulated sugar (caster sugar)
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • ½ cup (120ml) buttermilk (or substitute: see variations)
  • ½ cup (120ml) hot coffee (brewed or instant)
  • ½ cup (113g) unsalted butter, softened
  • 3 cups (360g) powdered sugar (icing sugar), sifted
  • ½ cup (50g) unsweetened cocoa powder
  • ¼ cup (60ml) milk (whole milk is best)
  • 1 teaspoon vanilla extract
  • Pinch of salt
  • Optional: Chocolate sprinkles for garnish

Instructions:

  1. Preheat oven to 350°F (175°C). Line cupcake tin with cupcake liners.
  2. Whisk together flour, cocoa powder, baking powder, baking soda, and salt in a medium bowl.
  3. In a separate large bowl, cream together the softened butter and granulated sugar until light and fluffy.
  4. Beat in the eggs one at a time, then stir in the vanilla extract.
  5. Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk, beginning and ending with the dry ingredients. Mix until just combined. Do not overmix!
  6. Gradually stir in the hot coffee until the batter is smooth. The batter will be thin.
  7. Fill cupcake liners about 2/3 full.
  8. Bake for 18-22 minutes, or until a toothpick inserted into the center comes out clean.
  9. Let the cupcakes cool in the tin for a few minutes, then transfer them to a wire rack to cool completely before frosting.
  10. In a large bowl, beat the softened butter until smooth and creamy.
  11. Gradually add the powdered sugar and cocoa powder, alternating with the milk and vanilla extract, until the frosting is smooth and creamy. Add a pinch of salt.
  12. Once the cupcakes are completely cool, frost them with the chocolate fudge frosting. Garnish with sprinkles if desired.