This has all five tastes in one drink AND you can have it hot or cold.
2 tablespoon tamarind paste (if you find the sweet version, use that)
100g fresh turmeric, chopped
2 lime leaves
50g of lemon balm
50g dark palm sugar
Place all the ingredients in a pan with 750ml of filtered water, cover and gently bring to the boil and simmer for 10 minutes.
NB – Tamarind is sour, depending on the variety you have, add a tiny pinch of salt or add a lemon/lime peel when you simmer the herbal tea.
Remove from the heat, strain and drink hot or leave to cool. Decant into a bottle, chill and enjoy later.