For the Brownies: – 1¼ cup granulated sugar (250g) – ½ cup vegetable oil (120mL) – 2 teaspoons vanilla extract – 2¼ cup all-purpose flour (270g) – ½ cup unsweetened cocoa powder (50g) – 1½ teaspoon baking soda – 1½ teaspoon salt – 3 cups shredded zucchini (don’t squeeze out moisture) (510g) – 1¾ cup semi-sweet chocolate chips (300g) For the Frosting: – 2⅔ cups powdered sugar (320g) – ¼ cup unsweetened cocoa powder (25g) – ⅓ cup unsalted butter melted (75g) – ⅓ cup milk warm (80mL)