How to make
Blend the watermelon to a smooth consistency. Sift the watermelon puree. Pour the juice in a big jug and add the lemon zest.
In a separate container, mix the lemon juice with the honey. Stir until the honey is dissolved and add the sweetened lemon juice to the jug. Dillute with 1.5 cups of cold water and chill the lemonade in the fridge.
Serve with a lot of ice and lemon slices.