I love watching Ina Garten of "Barefoot Contesa" and here is one of her recipe. And I tell you this one is so rich and so chocolaty goodness. I opted the frosting since it's already so rich.
Here's How;

Chocolate Ganache Cupcakes

Ingredients

* 1/4 pound unsalted butter, at room temperature

* 1 cup sugar

* 4 extra-large eggs, at room temperature

* 1 (16-ounce) can Hershey's chocolate syrup

* 1 tablespoon pure vanilla extract

* 1 cup all-purpose flour

* 1 teaspoon instant coffee granules

For the ganache:

* 1/2 cup heavy cream

* 8 ounces good semisweet chocolate chips

* 1/2 teaspoon instant coffee granules

Directions

Preheat the oven to 325 degrees F. Line a muffin pan with paper liners.

Cream the butter and sugar in the bowl of an electric mixer fitted with the paddle attachment until light and fluffy. Add the eggs, 1 at a time. Mix in the chocolate syrup and vanilla. Add the flour and coffee granules and mix until just combined. Don't overbeat, or the cupcakes will be tough.

Scoop the batter into the muffin cups and bake for 30 minutes, or until just set in the middle. Don't overbake! Let cool thoroughly in the muffin pan.

For the ganache, cook the heavy cream, chocolate chips, and instant coffee in the top of a double boiler over simmering water until smooth and warm, stirring occasionally.

Dip the tops of the cupcakes into the ganache. Do not refrigerate.