1 qt. milk
1 c. sugar
1 c. shortening
1 tsp. baking soda
1 tsp. baking powder
1 tbsp. vanilla
2 pkg. yeast
1 c. warm potato water
1 c. mashed potato

ix the above ingredients and let set about 30 minutes or until foamy.
Then add:

4 well beaten eggs
1 tbsp. salt
12 c. flour

Knead, let rise until double in bulk. Roll out about 3/4 inch thick, cut as for doughnuts. Let rise until double in size. Cook in hot oil or shortening. While still hot dip in glaze.

1/2 c. boiling water
1 lb. powdered sugar
2 tbsp. butter
2 tbsp. vanilla