- 1 box (1 lb 2.3 oz) Betty Crocker™ fudge brownie mix
- 1/4 cup water
- 1/2 cup vegetable oil
- 2 eggs
- 3/4 cup creamy or crunchy peanut butter
- Heat oven to 350°F. Grease bottom of 13x9-inch pan with shortening or cooking spray. In medium bowl, stir brownie mix, water, oil and eggs until well blended. Spread in pan.
2. In small microwavable bowl, microwave peanut butter uncovered on High 30 seconds; stir. Drop 20 spoonfuls of peanut butter in 5x4 rows over brownie batter. For marbled design, pull knife through batter and filling about 1 inch apart; turn pan and repeat.