Savor the irresistible combination of creamy peanut butter buttercream frosting deliciously piped on top of moist chocolate cupcakes, creating a heavenly treat that's sure to please you peanut butter and chocolate lovers.
In a large bowl, mix together the flour, cocoa powder, baking powder, baking soda, and salt together.
In a separate bowl, beat together room temperature eggs, granulated sugar, brown sugar, vegetable oil, and vanilla.
Pour the wet ingredients into the dry ingredients.
Combine hot water and the 2 teaspoon of instant coffee until dissolved. Add to bowl.
Add in the buttermilk* and stir together the ingredients until just combined. Don't over mix.
Fill the cupcake liners about ¾ of the way full and bake in the oven for 14-16 minutes. Check center with toothpick to see if they're done. (The center will come out clean.)
Allow the cupcakes to cool completely before frosting.
Peanut Butter Buttercream Frosting
Beat together the softened butter and the shortening until creamy.
Add in the vanilla and the creamy peanut butter.
Beat in the powdered sugar, a little at a time. It will be crumbly.
Add in 1 tablespoon of milk at at a time until the desired consistency is reached.
Pipe onto cool cupcakes.
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Notes
*A great substitute for buttermilk is to add 1 teaspoon of lemon juice to ¼ cup of regular milk. Allow the milk to sit for about 5 minutes before adding it to the other ingredients.