So. Unbelievably. Good. The brownies are straight goodness from a box and the icing is beater licking, bowl licking fantastic. So not only good, but really, barely a recipe…so easy!
If you have a favorite from-scratch brownie recipe, feel free to use that in place of the box. I happen to love brownie mixes – that consistently fudgy result EVERY time.
Look how creamy that icing is. I could not stop eating it…off the beaters, the bowl, the spatula, the knife when I cut the brownies. Ridiculously peanut buttery good.
This is now my go-to peanut butter icing. Cupcakes and cakes, I’ll even make some to swirl into ice cream. I’m certain that you’ll go back to it again and again too. It’s incredibly simple enough!
Brownies with the BEST Peanut Butter Frosting
1 box of fudge brownie mix
Oil, eggs, water to make brownies- according to package directions
For the frosting
1 cup confectioner's sugar
3/4 cup creamy peanut butter
1/4 butter, room temperature
1 teaspoon vanilla extract
3-4 teaspoons milk
Make brownies according to package directions. Cool completely. Make the icing by combining the confectioner's sugar, peanut butter, butter and vanilla in a medium bowl and mixing with a hand mixer. Add the milk a teaspoon at a time until it becomes light and fluffy and spreadable.
Spread icing over entire pan of cooled brownies. Cut into 16 small squares or 9 larger squares.