Line a 9x9x2-inch baking pan with foil, extending foil up over the edges of the pan.
Lightly coat foil with nonstick spray.
In a medium saucepan, melt butter over low heat; remove from heat.
Whisk in sugar and the water.
Whisk in egg, oil and vanilla until combined.
Place peanut butter in a small bowl; gradually whisk in 1/2 cup of the batter until smooth.
In another bowl, combine the remaining 1/4 cup flour and the cocoa powder.
Stir into the plain batter; stir in chocolate pieces.
Pour chocolate batter into prepared pan.
Drop peanut butter batter in small mounds over chocolate batter in pan.
Using a thin metal spatula, swirl batters together.
Cool completely in pan on a wire rack.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.
