Beef with vinegar

1 1/3 lb grnd sirloin     (90 percent lean grnd beef) 1 slc white bread spread with     softened butter , then cut small cubes 1/8 c. lowfat milk 1 x egg 2[...]

2 tablespoons olive oil 2 1/2 pounds beef chuck or round, trimmed of surface fat and cut into 1 inch cubes Salt and freshly ground black pepper to taste 2[...]