Potato Biscuit

Ingredients:
- 1 c. cooked potatoes
- 1 1/2 c. flour
- 2 level tsp. baking powder
- 1/2 level tsp. salt
- 1/4 c. shortening
- 1 egg
- about 3/4 c. milk

Directions:
- Boil and mash the potatoes, having them free from lumps.
- Sift the flour, salt and baking powder;
- add the potatoes and cut in the shortening.
- Mix to a light dough with the egg and milk; roll out a little thinner than ordinary biscuit and bake in a hot oven. Serve as soon as done.