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Three chocolate cupcakes with a rich swirl of chocolate frosting on top, sprinkled with chocolate shavings, displayed on a neutral background.

Ultimate Chocolate Cupcakes

These are the ultimate chocolate cupcakes. They are perfectly moist and insanely chocolaty, topped with a supreme fudge chocolate frosting.
YIELD 16 cupcakes
Author Stephanie @ Pretty.Simple.Sweet.

Ingredients

Chocolate Cupcakes:

  • 1 and ⅓ cups (185 g/6.5 oz) all-purpose flour
  • ½ cup (50 g/1.7 oz) cocoa powder*
  • ¾ teaspoon baking soda
  • ¼ teaspoon salt
  • ½ cup (1 stick/113 g) butter, softened to room temperature
  • 1 cup (200 g/7 oz) granulated sugar
  • 2 large eggs
  • 1 teaspoon pure vanilla extract
  • ½ cup (120 ml) whole milk
  • ½ cup (120 ml) hot water

Chocolate Buttercream Frosting:

  • cup (1 and ⅓ sticks/150 g) unsalted butter, softened to room temperature
  • 1 and ⅓ cups (160 g/5.5 oz) powdered sugar, sifted (plus more as necessary)
  • ¼ cup (25 g/1 oz) cocoa powder, sifted
  • ½ teaspoon pure vanilla extract
  • 115 g/4 oz. dark chocolate , melted and slightly cooled
  • 2 tablespoons (30 ml) heavy cream

Instructions

Make the cupcakes

  1. Preheat oven to 350℉/180℃. Line a muffin tin with cupcake liners and set aside.

  2. In a medium bowl, sift together flour, cocoa powder, baking soda, and salt. Set aside.

  3. In a standing mixer fitted with the paddle attachment, beat together butter and sugar on medium speed until light and fluffy, about 2-3 minutes. Scrape down the sides and bottom of the bowl as necessary. On medium speed, beat in eggs, one at a time, beating well after each addition. Add vanilla extract and beat until combined.

  4. With the mixer on low speed, add half of the dry ingredients and beat just until combined. Then beat in milk, followed by the other half of the dry ingredients, beating slowly until combined.

  5. Add hot water and beat just until combined. Do not overmix—the less you mix, the lighter the cake will be. The batter should be liquid.

  6. Divide batter evenly between cups, filling them about ¾ full. Bake for 15-20 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs. Allow cupcakes to sit for 10 minutes, then remove from pan and allow to cool completely on a wire rack.

Make the frosting

  1. In the bowl of an electric mixer fitted with the paddle attachment, beat butter at medium speed until pale and fluffy, about 2 minutes. Add powdered sugar in 2 additions and beat until smooth. Add cocoa powder and beat until completely creamy and smooth. Beat in vanilla extract, melted chocolate, and heavy cream, mixing until combined. Add powdered sugar as necessary until frosting is spreadable.

  2. Use frosting immediately to frost cupcakes, or store in the fridge, covered, for up to 3 days. Before using, bring to room temperature and whisk until smooth.

Recipe Notes

*Cocoa powder: If you’re using dutch-process cocoa powder, use 2 teaspoons of baking powder instead of the baking soda.

Storing and Serving

Cupcakes are best the same day they’re made, but can be kept in an airtight container at room temperature for up to 3 days. Unfrosted cupcakes can be kept in the freezer for up to 2 months. Thaw, still covered, on the counter or overnight in the fridge.

Helpful Tips

  • If you happen to have corn syrup, you can substitute some of the powdered sugar with it. This will make for an extra smooth frosting.
  • Sift the powdered sugar and cocoa powder, or else the frosting will be grainy. Also, make sure to beat the butter, sugar, and cocoa for at least 3-4 minutes, until completely smooth. If the frosting is still somewhat grainy, switch to the whisk attachment.
  • Extra chocolaty cupcakes? Try adding chocolate ganache (half of the recipe is enough) as a filling, or adding ½ cup chocolate chunks or chips to the batter itself.