Preheat the oven to 350 degrees F. Spray a 12 cup bundt pan with nonstick baking spray.
Beat the oil, sour cream and sugars in a large mixing bowl until creamy. Add the eggs and vanilla and beat again.
½ Cup Oil, ⅓ Cup Sour Cream, 1 ¼ Cups Sugar, ¼ Cup Brown Sugar, 3 Eggs, 2 teaspoons Vanilla extract
Stir together the flour, cocoa powder, baking powder, baking soda, and salt
2 ½ Cups Flour, ½ Cup Cocoa, 2 teaspoons Baking Powder, 1 teaspoon Baking Soda, 1 teaspoon Salt
Add the dry alternately with the buttermilk and zucchini until everything is incorporated. Stir in chocolate chips gently with a rubber spatula.
½ Cup Buttermilk, 3 Cups Zucchini
Pour into the prepared pan. Bake for 50-60 minutes, or until a toothpick or knife inserted into the center of the cake comes out mostly clean. Remove and cool in the pan for 15 minutes, then flip it out onto a plate and cool completely.
For The Glaze
Place the chocolate chips and heavy cream in a microwave safe bowl. Heat for 30 seconds. Stir until melted and creamy.
1 ¼ Cup Chocolate Chips, ½ Cup Cream, 1 Cup Chocolate Chips
Let it cool 5-10 minutes, then spoon over the top of the cake. Sprinkle with the mini chips and let set. Store in a tightly sealed container.