Barbecued Pork Sandwiches

Makes 16 servings 1 pork shoulder roast (about 5 pounds), trimmed and cut into 1-inch cubes 2 medium onions, coarsely chopped 2 tablespoons chili powder 1/2 teaspoon salt, optional 1-1/2 cups water 1 cup ketchup 1/4 cup vinegar Hamburger rolls, split In a Dutch oven, combine meat, onions, chili powder, salt if desired, water, ketchup […]