Chocolate Zucchini Cake

What do you do with giant zucchini? Shred it and make Chocolate Zucchini Cake!! Yummy!!!
 ½ cup butter
 ½ cup oil
 1 ¾ cup sugar
 2 eggs
 ½ cup sour milk (add 1 tsp. of vinegar)
 1 tsp. vanilla
 2 ½ cups flour
 1 tsp. baking soda
 ½ tsp. salt
 4 T cocoa powder
 ½ tsp baking powder
 ½ tsp cinnamon
 2 cups shredded zucchini
 Topping:
1 cup chocolate chips
 ¼ cups brown sugar
 Add first four ingredients alternately with milk. Add all others and mix in zucchini. Spread in a 9x13 pan. Sprinkle top with chocolate chips and brown sugar.
 Bake at 350, 40-50 minutes.
 Yummy!!!