A friend gave me a dozen Jin of dried longan for the Spring Festival, and I am making tea with these things you mentioned. Generally, I mix it like this: two bowls of boiled water, 15 longan, 10 red dates, and probably 15 medlar. Brown sugar depends on your taste. It's good to eat this often. It's hard to absorb nutrition if you eat too much at a time. Boil sugar water or make tea.