To prepare a sneaky mommys chocolate zucchini cake recipe, first you need to gather your ingredients. First, you'll need your zucchini. You can buy zucchini at your local grocery store, or you can make your own at home. If you don't have zucchini, use frozen zucchini instead. Then, preheat your oven to 350 degrees F (180 degrees C) and grease your cake pan with cooking spray. Add the zucchini to the greased pan and bake the cake for 35 to 40 minutes or until it's golden brown. Let cool in the pan for 10 minutes before removing it from the oven.