1Sift dry ingredients 3 times. Cut butter into flour mixture. Beat egg yolks thoroughly and add milk and beat again. Stir egg yolk mixture into dry mixture gently.
2Beat egg Whites until stiff. Fold into batter and blend gently. Pour into buttered or sprayed muffin tins. Bake at 400^ for 25 minutes. Check after 15 minutes and turn oven down to 375^.
Test with wooden toothpick for doneness.
If desired you can sprinkle crushed parsley, or dill weed or Italian seasoning or cinnamon/sugar on top of batter before baking.