Sift flours, baking powder and sugar into a large bowl.
Set aside. Beat egg with milk and salad oil.
Pour into dry ingredients and mix very quickly.
Fold in cheese and walnuts with just a few strokes.
Lumps should remain in the batter.
Pour into paper-llined muffin tin cups,
filling the cups 2/3 full.
Bake at 400° for 20-25 min.
12 muffins.