ROLLS:
Mash potatoes or mix instant potatoes.
Dissolve yeast and 1 T. sugar in warm water. Let sit until bubbly.
Add butter, 3/4 c. sugar, salt, milk, and mashed potatoes to mixing bowl. Gently stir until combined. Add beaten eggs and stir again. Add yeast mixture to potato mixture and stir again.
Sift 5 cups of flour into potato mixture. Mix, adding flour one Tablespoon at a time until dough begins to pull away from the sides of the bowl.
Cover. Let dough rise until doubled. About and hour.
Set dough on a floured or oiled surface. Roll out about 1/4"-1/2" thick. Generously spread with butter, about 1/2 cup. Generously sprinkle with cinnamon and sugar.
Roll up jelly roll style. Pinch seems together. Slice into rolls. I made 16 large rolls.
Set on two greased baking sheets. Cover. Let rolls rise until doubled, about 30 minutes.
Bake at 350 degrees for 15-20 minutes. Don't over bake.
While rolls are warm spoon glaze over the tops of the rolls. Let rest for about 10 minutes and spoon more glaze over the rolls.
GLAZE:
While rolls are baking make glaze. Mix all ingredients together and whisk until smooth.