Cupcakes

1. Melt the butter and chocolate: Preheat the oven to 350°F and line a muffin tin with 12 cupcake liners. Melt the butter and chocolate in a small bowl in the microwave, working in 20 second intervals and stirring after each interval. Set aside.
2. Mix the wet ingredients: In a large bowl, whisk together the eggs and sugar until smooth and creamy. Add the vanilla, sour cream, coffee, and melted butter and chocolate mixture and whisk until combined. 
3. Mix the dry ingredients: To the bowl of wet ingredients, sift in the cocoa powder, baking powder, baking soda and salt and whisk until combined. Next, sift in the flour and use a spatula to fold into the batter. 
4. Bake the cupcakes: Fill the cupcake liners about 3/4 full of batter then bake for 15 minutes or when a toothpick inserted in the center of a cupcake comes out clean. Let the cupcakes cool in the pan for 20 minutes, then transfer to a cooling rack once cool enough to touch.
5. Fill the cupcakes with fudge: Heat up the hot fudge in the microwave for about 5 to 10 seconds, just enough to soften the hot fudge. Pour the hot fudge into a piping bag with a small opening at the tip (if you don’t have a piping bag you can use a Ziploc bag and cut a small hole in the corner of the bag). Use the back of a wooden spoon to poke holes into the tops of the cupcakes. Gently squeeze the hot fudge into each hole until it reaches the top of each cupcake.

Frosting

1. Beat the frosting ingredients: In the bowl of a stand mixer (or with a hand mixer), beat the butter until smooth and creamy. Sift in the cocoa powder and brownie mix, then add the vanilla and beat until well combined. Add the milk then add the powdered sugar (1/2 cup at a time) while continuing to beat until well combined. Add the hot coffee at the end and beat on medium speed for at least 1 minute until smooth and glossy.
2. Frost the cupcakes: Transfer the frosting to a piping bag with your favorite tip or simply use an offset icing spatula to spread the frosting over the tops of the cupcakes. Top each cupcake with 1 mini chocolate chip cookie for garnish. Enjoy!