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A single coffee cupcake on a stack of white plates
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5 from 4 votes

Coffee Cupcakes

With creamy homemade frosting and moist, fluffy cake, these coffee cupcakes are a delightful afternoon pick-me-up!
Prep Time15 minutes
Cook Time20 minutes
Total Time45 minutes
Course: Dessert
Cuisine: American
Keyword: coffee buttercream, coffee cupcakes, coffee dessert
Servings: 18

Ingredients

For the Coffee Cupcakes

  • 2 ¼ cup (280g) all-purpose flour
  • 1 ½ cup (300g) granulated sugar
  • 2 ¼ tea baking powder
  • 2 tea instant coffee
  • ½ tea kosher salt
  • 1 cup (240ml) whole milk
  • 3 large eggs lightly whisked
  • 2 tea vanilla extract
  • ½ cup (120ml) avocado or canola oil
  • ¼ cup unsalted butter melted

For the Coffee Buttercream

  • 2 to 4 tea instant coffee or espresso
  • 1 cup (227g) unsalted butter softened
  • 3 ½ cup powdered sugar
  • 1 tea vanilla extract

Instructions

To Make the Coffee Cupcakes

  • Preheat the oven to 350°F. Line a muffin tin with cupcake papers and set aside.
  • In a large mixing bowl, whisk together the flour, sugar, baking powder, instant coffee, and salt.
  • Add the milk, eggs, and vanilla extract and whisk until combined. 
  • Add the melted butter and oil. Whisk the batter until the fats begin to emulsify into the batter, then switch to a large rubber spatula or wooden spoon. Continue to stir until smooth. It is okay if a few lumps remain.
  • Spoon the batter into the cupcakes liners, filling them ¾ of the way full. Bake for 20 to 23 minutes or until a toothpick inserted into the center comes out clean or with a few moist crumbs. Cool on a wire rack before adding icing.

To Make the Coffee Buttercream

  • Mix the instant coffee with a tablespoon or two of warm water to create a slurry. Set aside.
  • Use an electric mixer to mix the softened butter until smooth.
  • Add about half the powder sugar and mix on low until combined. Increase the speed and mix until smooth.
  • Add the coffee slurry and mix until smooth.
  • Add the remaining powdered sugar and mix on low until incorporated. Increase the speed and mix on medium until light and smooth.
  • Fill a piping bad fitted with a flutter tip with the buttercream. Hold the piping bag straight down over the cupcake and apply even pressure. Spiral the frosting around in a circle. Release the pressure before pulling the tip away.

Notes

Store the cupcakes at room temperature for up to 2 days. Cover in a cake box or in an air-tight container.
In order to extend their freshness, transfer leftovers in an air-tight container to the refrigerator for up to 3 days.
Unfrosted cupcakes may be wrapped in bundles of 4 or 6 and stored in the freezer for up to one month. 
Likewise, wrap leftover buttercream in plastic and store in the freezer for up to 3 months. Be sure to thaw and rewhip the frosting before using.