Prep Time::25 mins
Cook Time::10 mins
Additional Time::35 mins
Total Time:: 1 hr 10 mins
Servings::10
Yield::10 whoopie pies
Ingredients
cooking spray
1 (18.4 ounce) package brownie mix
¼ cup all-purpose flour
1 cup chocolate chips
¼ cup vegetable oil
2 large eggs
1 tablespoon multicolored candy sprinkles, or to taste
1 ½ cups powdered sugar
½ cup unsalted butter, softened
½ teaspoon vanilla extract
½ (16 ounce) tub marshmallow creme
Directions
Preheat the oven to 350 degrees F (175 degrees C). Line 2 baking sheets with parchment paper. Lightly coat a wire rack with cooking spray.
Stir brownie mix and flour together in a medium bowl until well combined. Add chocolate chips, oil, and eggs; stir until well blended.
Scoop 20 rounded tablespoons onto the prepared baking sheets. Decorate 1/2 of the cookies with candy sprinkles.
Bake in the preheated oven for 9 to 10 minutes. Remove from the oven and let stand for 2 to 3 minutes before removing to the sprayed rack to cool completely, about 30 minutes.
Meanwhile, combine powdered sugar, butter, and vanilla in the bowl of a stand mixer fitted with the paddle attachment; blend until light and fluffy, about 4 minutes. Fold in marshmallow creme.
Place marshmallow mixture in a large zip-top bag and cut a small hole in one corner. Pipe filling onto the center of one plain cookie and top with a sprinkled cookie. Repeat with remaining filling and cookies.