Chocolate Cupcakes With Chocolate Buttercream
Rich and moist chocolate cupcakes topped with decadent chocolate buttercream.

- Prep time
- 15 min
- Cook time
- 15 min
- Yield
- 15 servings
- Difficulty
- HARD
Ingredients
- 1 cup (132g) all-purpose flour
- 3/4 cup (150g) white granulated sugar
- 1/3 cup (30g) natural unsweetened cocoa powder
- 1 tsp baking soda
- 1/2 tsp baking powder
- 1/4 tsp salt
- 1/4 cup (60ml) vegetable oil
- 1 large egg, room temperature
- 1/2 tsp pure vanilla extract
- 1/2 cup (120ml) buttermilk, room temperature*
- 1/2 cup (120ml) hot coffee or hot water**
- 1 cup (226g) unsalted butter, room temperature
- 3 cup (360g) powdered sugar
- 1/2 cup (45g) natural unsweetened cocoa powder
- 3 tbsp (45ml) whole milk, room temperature
- 2 tsp vanilla extract
- 1/4 tsp kosher salt
Instructions
- 1
Preheat the oven to 350ºF/177ºC and line a cupcake pan with 12-15 liners.
- 2
Whisk all of the dry ingredients together in a large bowl to fully combine them. Add the vegetable oil, eggs, vanilla, and buttermilk and mix on low with either a hand mixer, the paddle attachment on your stand mixer, or by hand until combined. Add the hot coffee (or hot water) in a slow stream. Continue mixing on low until fully combined and smooth, 1-2 minutes. The batter will be very thin.
- 3
Pour the batter into the prepared cupcake liners (no more than ⅔ full) and bake for 15-18 minutes, until a wooden toothpick inserted comes out clean. Cool completely before frosting.
- 4
In a stand mixer fitted with a paddle attachment, whip the butter on high speed until creamy and light in color, about five minutes. Scrape down the bowl and paddle and turn the mixer to low, then add the powdered sugar, cocoa powder, milk, vanilla extract, and salt. Continue mixing on low speed until fully combined and uniform, 2-3 minutes, scraping down the bowl and paddle as needed.
- 5
Let the cupcakes cool thoroughly before frosting with chocolate buttercream. In the images above, I've used Wilton tip 1M to pipe a swirl with the buttercream before adding these sprinkles.