This is my grandma's roll recipe:
Mix 2 eggs, 1 C Mashed potatoes, 1 C warm milk. Add 1 cake yeast (2-1/4 tsp?). Add enough flour to make a sponge cover.
THERE are no directions for how much flour. I'm unsure of what a sponge cover looks like.
Rise 2-1/2 hours
Add 2 tsp salt, 1/2 C butter & remaining flour
AGAIN: How much flour? I always tend to add too much. I think I remember what it should feel like, though.
Rise again. (DOUBLE in size, right?)
Shape into rolls, cook at 350 degrees, 20 minutes.