Source: Confessions of a Cookbook Queen
Yields: ~2 dozen cupcakes
2 cups flour
1/2 cup dark cocoa powder
2 tsp baking soda
1 tsp baking powder
1/2 tsp salt
1 cup sugar
1 stick unsalted butter, softened
1/2 cup nutella
1/2 cup milk
Preheat the oven to 350 degrees and line a muffin pan with cupcakes liners.
Sift together the flour, cocoa powder, baking soda, baking powder, and salt.
In a large bowl, beat the eggs and sugar for 3-5 minutes or until the mixture is pale and thick. Add in the butter and beat until combined. Then, add in the nutella. Add the flour mixture and milk half at a time until well-blended.
Divide batter into the cupcake liners, filling 2/3 full. Bake about 25 minutes or until a toothpick inserted in the center comes out clean. Remove from the oven and let cool completely.