This chocolate cake is made deliciously moist with shredded zucchini and fresh with a hint of orange thanks to some fresh orange zest!
Preheat oven to 350° F.
In a large bowl, blend butter and sugar together until light and fluffy. Add eggs one at a time, beating well after each addition. Sit in vanilla, orange peel and zucchini (the batter will be wet).
In another large bowl, stir together dry ingredients (flour, cocoa, baking powder, baking soda, salt and cinnamon). Alternately stir dry ingredients and milk into zucchini mixture, just mixing until everything is incorporated after each addition. (I like to start with 1/3 flour mixture, then 1/2 of the milk, then 1/3 of the flour mixture, then the remaining 1/2 of milk, then the remaining 1/3 of flour). Add chocolate chips and nuts if using and stir just until combined.
Pour batter into a greased 9x13 pan and bake in a preheated oven for 45 minutes or until the top of the cake springs back when lightly touched in the center.
Add all ingredients to a small bowl and whisk until smooth. Pour glaze over warm cake and serve.
I didn't use nuts in my recipe, but if your family likes them, some walnuts would be wonderful in this recipe!