1. Soak the black beans into water for at least 2 hour, remove and drained then set aside.
2. Rinse the frogs and blanch into boiling water for a while, remove and place into a double boiler, add in black beans and the rest of the ingredients(remember to rinse the herbs before using).
3. Pour in boiling water, covered and double-boiled over a low heat for about 2 hours.
4. Remove from heat and serve immediately.
a) This soup is abit sweet due to the Dried Longan, so if you don't prefer it to be sweet omit the adding the dried longan.
b) If you don't have a double boiler, you can put all the ingredients into a pot and place it in the slower cooker to double-boil over slow/auto heat for about 3 - 4 hours.