Zucchini Brownies with 1 minute Frosting!

Bahan-bahan (18 porsi)

• ½ cup vegetable oil
• 1 ½ cups granulated sugar
• 2 teaspoons vanilla extract
• 1 egg
• 2 cups all-purpose flour
• ½ cup unsweetened cocoa powder
• 2 teaspoons baking soda
• 2 ½ cups grated zucchini (undrained (about one large))
• ⅓ cup milk
• ⅓ cup butter
• 1 ½ cups granulated sugar
• 1 cup chocolate chips