Cherry and Walnut Jam

Pit the cherries. Roughly chop the walnuts with a knife or place them in a bag and crush them with a rolling pin.

Pour the sugar into a saucepan and add the water. Place over heat and stir until the sugar is fully dissolved.

Add the cherries and walnuts to the syrup. Stir well. Simmer for 15–20 minutes after bringing to a boil, periodically skimming off the foam.

Let it cool completely. Then bring to a boil again, simmer for 15–20 minutes, and cool. Repeat this process a third time, but instead of cooling, immediately ladle the hot jam into sterilized jars.