I prefer keeping this soup simple, but there are so many flavor additions you can add! 1) Beef Bullion cubes add another layer of depth and flavor to the soup. Add two cubes, crushed, to the soup when you add the beef stock. 2) Additional herbs: Dried or fresh rosemary, fresh garlic, and fresh parsley all add great flavor! When adding spices, start with a small amount, taste, and keep adding to taste. 3) A dash of hot sauce never hurt anyone :)