Butterscotch Zucchini Cake

Ingredients

• 1/4 cup granulated sugar
• 1 teaspoon ground cinnamon
• 3/4 cup vegetable oil
• 2 large eggs
• 1 cup packed brown sugar
• 1 cup granulated sugar
• 1 teaspoon vanilla extract
• 2 1/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1/4 teaspoon ground ginger
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon ground cloves
• 2 cups grated zucchini (un-drained)
• 11 ounces butterscotch chips (divided, about 3/4 cup for topping)