Chocolate Peanut Butter Cake

2 cups miniature marshmallows
1 package chocolate cake mix
1 1/4 cups water
3/4 cup peanut butter
1/3 cup canola oil
3 eggs
1 cup semisweet chocolate chips

Sprinkle marshmallows into a greased 13x9 inch baking pan. In a large bowl, combine the cake mix, water, peanut butter, oil and eggs, beat on low speed for 30 seconds. Beat on medium for 2 minutes or until smooth. Pour over marshmallows, sprinkle with chocolate chips.

Bake at 350F for 30-35 minutes or until toothpick inserted near the centre comes out clean. Cool on a wire rack.