Bake 9 medium potatoes with skins on aprox. 40 min. (cool & cube)
Then add: 16 oz. sour cream, 1 1/2 c. grated sharp cheddar cheese, 1/2c. chopped onions, and blend until soup.
Pour over potatoes. Put in 13x9 buttered pan. Crush ritz crackers on top with sliced butter (aprox 1/2 cube)
Bake at 350 for 45 min.