Wash red bean, lotus seeds, lily bulbs and mandarin peels
Soak mandarin peels into water for 20 minutes
Put red beans into a pot with a bit of water
Bring to boil for 10 mins, drain the beans and set aside
Scrape the white bits out from the mandarin peel (the more white bits you can peel off, the less bitter taste)
Put lotus seeds and lily bulbs into a pot with some water, bring to boil for 10 mins, drain the ingredients and set aside
Put 4 cups of water into a pot, add in the mandarin peels, bring to boil for 10 mins, keep the liquid
Finely chop up the mandarin peels and the sugar
Add the chopped up mandarin peels, lotus seeds, lily bulbs and red beans into the liquid from step 8
Bring to boil on high heat, turn to low heat for 45 mins, drain the ingredients, and keep the liquid
Crush the red beans through a sieve to achieve a gritty texture
Put the liquid from 12 back into the pot, add in extra 2 cups of water and chopped brown sugar
Add all ingredients back to the pot when sugar has been fully dissolved, bring to boil on low heat for 30 mins, and ready to serve