German Pancakes (aka Dutch Babies)

Preheat oven to 425 degrees. In large, heavy, round pan with sides approx 2 to 2 1/2 inches high (I use a paella pan) place margarine in pan and into oven to melt. While margarine is melting, blend the eggs in your blender for 1 minute (or until light yellow if by hand). While motor is running, slowly add milk then flour. Add nutmeg if desired. Pour over melted margarine and bake for 20-25 minutes until golden brown and puffy. Serve immediately.