Lunch Box Squares

Ingredients

• 1/2 c. butter or margarine
• 1/2 c. oil (i.e. Crisco)
• 1 3/4 c. sugar
• 2 eggs
• 1 tsp. vanilla
• 1/2 c. buttermilk*
• 2 1/2 c. flour
• 1 tsp. baking soda
• 1/2 tsp. baking powder
• 1/2 tsp. salt
• 1/4 c. cocoa
• 1 tsp. cinnamon
• 2 c. grated zucchini, do not peel