Kumquat Lemon Sauce
1.
Wash the kumquat with fine salt
2.
Boil in boiling water, just pop the skin
3.
Cut to core, cut into pieces
4.
Simmer in a pan on low heat, being careful not to mash the pan
5.
Add sugar, add lemon juice, and collect the juice. It can be stored for a week. Note that the container should not have raw water, preferably dry