Wash Angelica sinensis, Radix Astragali, Fructus Jujubae (with stones removed) and eggs, soak them in 3 bowls of water for 10 minute, then put the eggs together in a casserole, boil them in medium heat, then turn down the heat for about 10 minute, take out the eggs, peel them, and put them in a casserole to continue cooking for about 30 minutes. When the water in the casserole reaches the amount of a bowl, add appropriate amount of brown sugar and continue to cook for about 5 minutes.