Preheat oven to 400°F. Spray a 6-cavity donut pan with nonstick spray. Set aside. In a large bowl, cream together the butter, vegetable oil, granulated sugar, and brown sugar until smooth. Add the egg, beating to combine. Mix in the baking powder, baking soda, cinnamon, nutmeg, allspice, ginger, salt, and vanilla. On low speed, mix the flour into the butter mixture alternately with the apple cider and milk, beginning and ending with the flour and making sure everything is thoroughly combined. (So start with ⅓ of the flour, then all of the cider, then another ⅓ of the flour, then all of the milk, and finally the rest of the flour.)