Ingredients
Equipment
Method
Preparation
- Preheat oven to 350°F (177°C) and line a muffin tin with cupcake liners.
- In a bowl, mix graham cracker crumbs, sugar, melted butter, and salt until wet sand texture. Press into cupcake liners.
- Bake crust for 5-6 minutes until slightly browned.
- Sift flour, cocoa powder, baking powder, baking soda, and espresso powder in one bowl.
- In another bowl, whisk eggs, brown sugar, oil, vanilla, and buttermilk until smooth. Combine with dry ingredients, mixing gently.
- Fill each cupcake liner 2/3 full with batter and bake for 16-18 minutes until a toothpick comes out clean.
- Allow cupcakes to cool completely on a wire rack.
Filling and Frosting
- Heat heavy cream in a saucepan until simmering, pour over chocolate and stir until smooth. Refrigerate to firm up.
- For frosting, combine egg whites, sugar, and corn syrup over a double boiler. Stir until sugar dissolves and then whip until fluffy.
- Remove centers of cupcakes, fill with ganache, and top with marshmallow frosting. Toast frosting with kitchen torch until golden.
Notes
For the best results, ensure egg whites are at room temperature before whipping. Store in an airtight container for up to 3 days.