Crumb Topping 6 tablespoons unsalted butter, softened (90 grams or 3 ounces) ¼ cup granulated sugar (50 grams 1 ¾ ounces) ¼ cup packed dark brown sugar (50 grams or 1 ¾ ounces) ¼ teaspoon salt ¾ cup all-purpose flour (90 grams or 3 ounces) Pumpkin Cake Donut ¼ cups flour (175 grams 6 ⅛ ounces) 1 teaspoon cinnamon ½ teaspoon nutmeg ½ teaspoon ginger ⅛ teaspoon cloves 2 teaspoons baking powder ½ teaspoon baking soda ½ teaspoon salt ½ cup oil 2 eggs 1 cup brown sugar, packed (200 grams or 7 ounces) ¾ cup pumpkin puree (170 grams or 6 ounces1 teaspoon vanilla) Powdered sugar as needed