Require two bowls, one small and one large. Preheat the oven to 400°F. Combine the cornmeal and the milk in the small bowl. Let the mixture stand for ten minutes. In the large bowl, sift flour, sugar, baking powder and salt. After the cornmeal mixture has stood for ten minutes, add the egg and oil. Mix well. Add this to the dry ingredients in the large bowl, stir until combined - take it easy here and do not over do it. Fill greased muffin cups two thirds full. Bake at 400°F for 15 to 20 minutes.