Put the plums in a saucepan and pour sugar on top. Place the pan
over medium heat and bring to a simmer. Do not stir the mixture
until the sugar on top of the plums is nearly melted, then stir
it frequently until the mixture is thickened, about 15 to 20 minutes.
DO NOT OVERCOOK.
Remove it from the heat and allow it to cool. It will continue to
gel as it cools.
Keep the Plum Conserve in the refrigerator or place
it in sterilized jars according to manufacturer's directions.