1 (18 ounce) package yellow cake mix
1 (3.5 ounce) package instant chocolate pudding mix
1/4 cup boiling water
1 cup vegetable oil
Preheat oven to 250 degrees F (120 degrees C). Grease and flour a 9-inch springform pan.
In a large bowl, combine yellow cake mix, pudding mix and boiling water. Mix thoroughly. Pour mixture into prepared pan.
Bake in the preheated oven for 60 minutes, or until a toothpick inserted into the center of the cake comes out clean. Cool completely before cutting into bars.