I found the idea for these on Facebook and made them a couple of years ago for my fiancee as a birthday present. They are sinfully rich. We took the leftovers to work (you really can’t have too many of them and you kinda need a tall glass of milk to wash them down with!) and they were dubbed “Devil Cupcakes” due to how sinfully delicious they were.
Makes 12 servings
Ingredients
Brownie batter
- 1/3 cup Dutch-processed cocoa
- 1½ teaspoons instant espresso (optional)
- ½ cup plus 2 Tablespoons boiling water
- 2 ounces unsweetened chocolate, finely chopped
- 4 tablespoons (½ stick) unsalted butter, melted
- ½ cup plus 2 Tablespoons vegetable oil
- 2 large eggs
- 2 large egg yolks
- 2 teaspoons vanilla extract
- 2½ cups (17½ ounces) sugar
- 1¾ cups (8¾ ounces) all-purpose flour
- ¾ teaspoon salt
- 6 ounces bittersweet chocolate, cut into ½-inch pieces
- 1.5 cups Reeses pieces
Cupcakes
24 peanut butter Oreos
Frosting
- 1/2 cup butter, softened
- 1 cup creamy peanut butter
- 3 tablespoons milk, or as needed
- 2 cups confectioners’ sugar
Directions
Cupcakes
- Preheat oven to 350 degrees and line a 12 muffin cup baker with paper liners.
- Prepare brownie mix:
- Whisk cocoa, espresso powder, and boiling water together in large bowl until smooth. Add unsweetened chocolate and whisk until chocolate is melted.
- Whisk in melted butter and oil. (Mixture may look curdled.)
- Add eggs, yolks, and vanilla and continue to whisk until smooth and homogeneous.
- Whisk in sugar until fully incorporated.
- Add flour and salt and mix with rubber spatula until combined.
- Fold in bittersweet chocolate pieces and Reeses pieces.
- For each cupcake cup spread 1/2 teaspoon of peanut butter over each Oreo cookie and stack them on top of each other.
- Place Oreo stacks into the cupcake lined muffin cups.
- Spoon 2 tablespoons of brownie batter over each stacked oreos and let it run down the sides of the cookies.
- If you have left over brownie batter, bake separately in a separate baker or muffin tin.
- Bake cookies and brownies for 18 to 20 minutes, until brownies are cooked through.
- Let cool completely before frosting.
Frosting
- Place the butter and peanut butter into a medium bowl, and beat with an electric mixer.
- Gradually mix in the sugar, and when it starts to get thick, incorporate milk one tablespoon at a time until all of the sugar is mixed in and the frosting is thick and spreadable.
- Beat for at least 3 minutes for it to get good and fluffy.