Potato Doughnuts

Directions

1. 1
   Dissolve yeast in warm water in 3-quart bowl.
2. 2
   Stir in sugar, salt, shortening, eggs, potatoes and 3 cups flour.
3. 3
   Beat until smooth.
4. 4
   Mix in enough remaining flour to make dough easy to handle.
5. 5
   Turn dough onto well floured surface; knead until smooth and elastic (about 5 minutes).
6. 6
   Place in greased bowl, turn greased side up and cover tightly.
7. 7
   Refrigerate at least 8 hours.