When the mixture starts to thicken, you can add vanilla and grated lemon peel to enhance the flavor.
Thickening:
Continue cooking until the jam thickens and reaches the desired consistency.
If the melon pieces are too large, you can partially mash them with a wooden spoon or hand blender to achieve a smoother consistency.
Readiness test:
To test the readiness of the jam, place a teaspoon of jam on a cold plate and leave it for a few seconds. If it sets and is not runny, then the jam is ready.
Filling:
Remove the jam from the heat and allow it to cool slightly.
Pour the jam into sterilized jars while they are still warm, and seal the jars tightly.
After the jars have completely cooled, store them in a cool, dry place.
Tips:
If the watermelon has a lot of juice, you can strain it a little before cooking the jam.
You can add a little grated ginger or cinnamon to give the jam a different flavor.
Watermelon jam is delicious and refreshing, and can be used as a topping for toast or pancakes, or even with desserts like cake.