Cut up the Kumquat into a basin, reserving the pips in another basin. Put enough water with the fruit so you can just see though it (can put the fruit through a food processor if required). Add water to the seeds also. Stand overnight. Next day boil up the seeds. Strain, reserving the water. Add the water to the fruit. Then boil the fruit up until tender. Next add one cup of sugar for every cup of fruit. Boil furiously until set. Store in clean sterilized jars.
Sugar must be cup for cup of fruit, 50% 50%.
—Sandra Boyle a family favourite