Ingredients
Equipment
Method
Step‑by‑Step Instructions
- Preheat the oven to 160ºC (320ºF) and line a 12-cup cupcake tray with liners.
- In a large mixing bowl, combine granulated sugar, cocoa powder, flour, espresso powder, baking powder, baking soda, and salt.
- In another bowl, whisk together sour cream, vegetable oil, eggs, and vanilla. Stir in boiling water.
- Gradually add the wet mixture to the dry ingredients, stirring until smooth.
- Divide the batter among the cupcake cups, filling two-thirds full. Bake for 20-23 minutes.
- Cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
- Crush Oreo cookies. Beat butter until creamy, then mix in powdered sugar, vanilla, and milk alternately.
- Fold in crushed Oreos to create the buttercream. Pipe onto cooled cupcakes and top with whole Oreos.
Nutrition
Notes
Ensure butter is at cool room temperature for the best frosting texture. Use the spoon-and-level method for accurate flour measurement.
