The good old-fashioned buttermilk kind.

Patrick Nolan → Betty Nolan → Betty Crocker

1 egg
1 cup buttermilk
2 tbsp. vegetable oil or melted shortening
1 cup Flour
1 tbsp. sugar
1 tsp. baking powder
1/2 tsp. soda
1/2 tsp. salt

Blend egg, milkk and oil.  Blend dry ingredients together.  Add to liquids; beat with rotary beayter until all flour is moistened. (Batter will be slightly lumpy.)

Sweet Milk Pancakes
Make Favorite Pancakes (above) -- except  substitute sweet milk for buttermilk; add 2 tsp. more baking powder and omit soda.  For extra lightness, beat egg yolk,  add milk, etc.  Fold in stiffly beaten egg white.