Before cooking dried peas, soak them for four hours, then pressure cook for ten minutes, or simmer on the stove for one hour or till tender. 1 cup dried black-eyed peas yields approximately 2 1/2 cups of cooked peas. Follow package directions for preparing frozen peas. Cooked black-eyed peas can be puréed into a delicious spread for sandwiches or crackers. Serve them with rice and cooked collard greens for a taste of the South.