Ingredients:
- 1.5 cups (190g) all-purpose flour
- 1 cup (200g) granulated sugar
- 1 tsp (5g) baking powder
- 0.5 tsp (3g) salt
- 0.5 cup (113g) unsalted butter, softened
- 2 large eggs
- 2 tbsp (12g) instant espresso powder
- 0.5 cup (120ml) whole milk
- 0.25 cup (60ml) strong brewed espresso, cooled
- 1 tbsp (15ml) coffee liqueur
- 1 tbsp (12g) granulated sugar
- 8 oz (225g) mascarpone cheese, chilled
- 1 cup (240ml) heavy whipping cream, chilled
- 0.5 cup (60g) powdered sugar
- 1 tsp (5ml) vanilla extract
- 2 tbsp (15g) unsweetened cocoa powder
Instructions:
- Preheat oven to 350°F (175°C) and line a 12-slot standard muffin tin with paper liners.
- Cream the softened unsalted butter and 200g granulated sugar until pale and fluffy, then beat in the eggs one at a time.
- Whisk the instant espresso powder into the whole milk.
- Alternately add the flour, baking powder, and salt, and the espresso-milk mixture to the butter mixture, mixing until combined.
- Bake for 18–22 minutes until the tops spring back when lightly touched and a toothpick emerges with a few moist crumbs.
- While cupcakes are warm, simmer the brewed espresso, 12g granulated sugar, and coffee liqueur in a saucepan for 2 minutes until the sugar dissolves.
- Use a small knife or skewer to poke 5–7 deep holes into the top of each warm cupcake.
- Brush approximately 1 tbsp of the espresso syrup over the top of each cupcake, allowing it to soak into the core.
- In a chilled bowl, whip the cold mascarpone cheese, heavy whipping cream, powdered sugar, and vanilla extract until stiff peaks form.
- Pipe the mascarpone frosting onto the cooled cupcakes.
- Dust the tops of the cupcakes with unsweetened cocoa powder using a fine-mesh sieve.
- Chill the cupcakes for 1 hour to allow the frosting to set before serving.