- Dissolve the yeast in the warm water in a large mixing bowl. Sprinkle with 1 TBS sugar. Allow to proof for about 5 minutes till a nice foam is there. 
- Add in the butter, remaining sugar, salt and eggs and mix well. 
- Add in the mashed potatoes and stir to combine. 
- Add in the flour, mixing well, after 5 1/2 cups add about 1/4 cup at a time until the dough is not so sticky and pulls from the edges. 
- Knead for about 5 minutes. 
- Cover the dough with a towel and allow to rise for 45 minutes to 1 hour until it has doubled in size. 
- Punch down the dough and separate into 24 balls, rolling one at a time and placing into either two greased 9x13 baking sheets or onto 1 large greased cookie sheet. 
- Cover with a towel and allow to rise for 30-45 minutes. 
- Preheat oven to 350 degrees. 
- Bake for 20-25 minutes until the rolls are golden brown. 
- Spread tops with butter and bake for 1-2 additional minutes. 
- And enjoy.