Soak soybeans in stock and refrigerate overnight.
Grind in food grinder with medium knife.
Place ground soybeans in pan with stock in which they were soaked.
Simmer 1 1/2 to 2 hours, or until tender, stirring occasionally.
Use this filler in bread dough, cereal, soup, meat, fish, fowl, vegetable or nut casseroles or loaves, stuffed tomatoes, eggplants, peppers, onions.