Ingredients
Scale
- 1 and 3/4 cups cake flour
- 2 teaspoons espresso powder
- 3/4 teaspoon baking powder
- 1/4 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, softened to room temperature
- 1 cup granulated sugar
- 3 large egg whites, at room temperature
- 1 and 1/2 teaspoons pure vanilla extract
- 1/3 cup sour cream or plain yogurt, at room temperature
- 1/4 cup strong black coffee, cooled to room temperature
- For the frosting: 1 cup unsalted butter, softened to room temperature
- 4 cups confectioners’ sugar
- 1/2 teaspoon espresso powder (optional)
- 1 and 1/2 Tablespoons strong black coffee, cooled to room temperature
- pinch of salt
- optional for garnish: chocolate sprinkles
Instructions
- Preheat the oven to 350°F (177°C) and line a muffin pan with cupcake liners.
- Whisk together the cake flour, espresso powder, baking powder, baking soda, and salt in a mixing bowl. Set aside.
- Using a handheld or stand mixer, beat the butter on high speed until smooth and creamy, about 1 minute. Add the sugar and beat on high for another 2 minutes until well combined.
- Add egg whites and vanilla extract, beating on medium-high speed until mixed together. Then add sour cream and scrape down the sides of the bowl as necessary.
- With the mixer on low speed, gradually add in dry ingredients until just incorporated. Slowly pour in cooled coffee while mixing until just combined.
- Pour/spoon the batter into cupcake liners, filling only 2/3 full. Bake for 19-22 minutes or until a toothpick comes out clean when inserted in the center. Cool completely before frosting.
- To prepare frosting, beat butter on medium speed until creamy, about 2 minutes. Add confectioners’ sugar, optional espresso powder, cooled coffee, and beat until combined. Adjust consistency if necessary.
- Frost cooled cupcakes using your preferred piping method and top with optional chocolate sprinkles.
- Prep Time: 20 minutes
- Cook Time: 22 minutes
- Category: Dessert
- Method: Baking
- Cuisine: Gourmet
Nutrition
- Serving Size: 1 cupcake (60g)
- Calories: 360
- Sugar: 30g
- Sodium: 150mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 0g
- Protein: 3g
- Cholesterol: 25mg