Chocolate Peanut Butter and Banana Cake

From "Cake Mix Magic." Uses a devil's food cake mix (a nice change from the yellow cake mix seen in other recipes for similar cakes). Basically, a chocolate banana cake with chocolate peanut butter glaze. Yum. The author notes that chunky peanut butter can be used for the glaze if desired but will not produce a smooth satiny glaze. Prep time is an estimate.

• Ready In: 50 mins
• Serves: 12-16
• Yields: 1 cake

Ingredients

• Cake

• 1 (18 1/4ounce) package  devil's food cake mix
• 3  eggs
• 1 1⁄2 cups  mashed ripe bananas (about 3 or 4 large bananas)
• 1⁄2 cup  vegetable oil

• Chocolate Peanut Butter Glaze

• 4 (1 ounce)  semi-sweet chocolate baking squares
• 2⁄3 cup creamy peanut butter
• 1⁄3 cup  chopped peanuts (optional)

Directions

1. Cake: Preheat oven to 350*F. In a large mixer bowl, combine all cake ingredients. Beat on medium speed for 2 minutes, or until smooth. Spread batter evenly in a greased and floured 13-by 9-inch cake pan. Bake 35 to 40 minutes or until a toothpick inserted in center comes out clean. Cool completely in pan on a wire rack.
2. Glaze: In a small saucepan over low heat, melt chocolate and peanut butter, stirring constantly until smooth. Spread evenly over cooled cake. Sprinkle nuts on top, if desired.