Add one teaspoon of sugar, and salt and pepper to taste. Simmer the beans for one and a half to two hours or until they're tender. Serve cooked dry soybeans like you serve other dry beans or use them to make baked beans. The protein in soybeans is almost comparable in quality to animal protein. To be a complete protein, it needs only to be combined with a small amount of meat, milk or a cereal grain such as rice.
Soybeans are also rich in calcium, iron, phosphorus and some of the B vitamins.