Buttermilk Oatmeal Muffins

In a bowl, soak oats in buttermilk for 15 minutes. Stir in egg, sugar and oil. Combine flour, baking powder, baking soda and salt; stir into oat mixture just until moistened. Fill greased or paper-lined muffin cups three-fourths full. Bake at 400° until muffins test done, 16-18 minutes. Cool in pan 5 minutes before removing to a wire rack.