It does not take much time to prepare Watermelon Jam. If you like sweet, like Watermelon and you have 30 minutes, you can cook this delicious jam. You will need:
1 Watermelon of medium size
1 kg of sugar
1 lemon
1/2 tsp. cinnamon.

Cut the watermelon, take the pulp about 1.5 kg. Try to take out all the bones. Cut into small cubes and fill with sugar. After 10 minutes, put on a fire and let it boil. During the boil add the lemon zest and lemon juice, as well as cinnamon. Stir and remove from heat.
Enjoy the chilled.