Preheat oven to 350° F.
Sift dry ingredients. Make hole in center.
*Put egg in a one-cup measuring cup and fill it with milk and melted butter. * Add to dry ingredients.
Put in layer-cake pan or 8″x8″ square pan. (You can double recipe and bake in a 13 by 9-inch pan. The only way my mother ever made it.)
Sprinkle generously with brown sugar and chopped walnuts.
Bake at 350° F. until done — approximately 45 minutes.
Serve directly from pan.