Cut up a watermelon and place the pieces in a blender or food processor and blend until you have a liquid. Strain the liquid through a nut milk bag and you will need 3 cups of watermelon juice.

Place the watermelon juice on the stove top on low heat. You simply want to warm it so that the gelatin will break down. When it's warm to the touch, remove from the stove and add the gelatin and mix thoroughly.

Grease the mold with the 1 tsp of coconut oil and pour in the watermelon juice.

Place in your fridge and let chill for 8 hours or until set.