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Ingredients
- 1 box brownie mix
- 1/2 c. peanut butter
- 1/4 c. confectioners' sugar
- 1 1/2 tbsp. melted butter
- 1 large egg
Method
- Prepare brownie mix as label directs for 9" by 9" pan.
- In bowl, stir peanut butter, sugar, melted butter, and egg until smooth.
- Dollop peanut butter mixture onto brownie batter in pan; swirl with knife.
- Bake according to directions.