This pumpkin cake recipe has a delicious cinnamon crumb topping and is the ultimate Thanksgiving dessert that can be made ahead of time and perfect for your holiday gathering. Ingredients Needed: granulated sugar brown sugar canola oil or vegetable oil (15 ounce) can pumpkin puree large eggs pure vanilla extract salt buttermilk (or Greek yogurt) all-purpose flour baking soda baking powder ground cinnamon & nutmeg ground cloves & ginger Crumb topping: butter all-purpose flour granulated sugar cho