1/2 cup butter
2 1/2 cups flour
1/2 cups cooking oil
1 3/4 cups sugar
2 eggs
1 teaspoon vanilla
1/2 cup buttermilk
1 teaspoon baking soda
1/2 teaspoon salt
1/2 teaspoon baking powder
1/2 cups cocoa
2 cups zucchini (drained)

Preheat oven to 350F degrees.

Cream together butter, oil, and sugar. add eggs one at a time. Blend in vanilla and buttermilk. In another bowl, mix dry ingredients. Add to batter, mix thoroughly, add zucchini by hand until zucchini is mixed in well.

Spread in 11 x 16" pan.

Bake at 350 for 15-20 min.

Turn off oven- if more baking time is needed, leave brownies in oven for 5 more min.

Cool, frost and add nuts (optional).