Preparation
Preheat oven to 350°F. Grease a 9-inch square baking pan, set aside.
Prepare brownie mix to package directions.
In a separate bowl, beat together the cream cheese, peanut butter, vanilla, sugar and egg.
Pour brownie batter into pan. Drop dollops of the peanut butter cream cheese mixture over the top of the brownie batter. Using a knife, gently swirl the peanut butter cream cheese mixture into the brownie batter.
Pour brownie batter into pan. Drop dollops of the peanut butter cream cheese mixture over the top of the brownie batter. Using a knife, gently swirl the peanut butter cream cheese mixture into the brownie batter.
