Combine flour, baking powder, salt, nutmeg and cinnamon.
Combine oil, sugar, egg and milk. Add dry ingredients and stir only to combine.
Bake at 350 degrees for 15-20 minutes. Meanwhile, melt the butter in a bowl. Combine the white sugar with the cinnamon in another bowl.
Shake muffins out while still hot. Dip muffins in butter, then into the sugar/cinnamon mix. Let cool