1 lg. pkg. brownie mix
1/3 c. hot water
1/2 c. oil
1 egg

FILLING:

3 oz. cream cheese (softened)
1/3 c. peanut butter
1/4 c. sugar
1 tsp. vanilla
1 egg

Mix the bar ingredients together in one large bowl and mix the filling ingredients together in a smaller bowl. Spread 1/2 of the batter in pan. Drop tablespoons of the filling on the batter and spread. Cover with remaining batter. Marble by pulling a knife through. Bake 30 to 35 minutes at 350 degrees.