Sort and wash peas; place in a medium Dutch oven. Cover with water 2 inches above peas; bring to a boil, and cook 5 minutes. Remove from heat; let stand 1 hour. Drain well.
Place peas, 3 cups water, onions, hog jowl, salt, and pepper in Dutch oven. Bring to a boil. Reduce heat; cover and simmer 1 hour or until peas are tender.