Rinse the peels, peel off the green and cut into medium cubes. Soak the chopped peels in cold water overnight. Then boil for 5 minutes and drain the water, so we can get rid of the nitrates present.
Transfer the crusts to the pan, add sugar, water, squeezed juice from oranges and their zest. The syrup should be level with the crusts. Put on low heat and cook after boiling for 5 minutes, stirring occasionally. Leave to cool overnight. Repeat such manipulations until the whole syrup evaporates and there is very little left at the bottom. Add lemon juice at the very end.
Place the crusts on a baking sheet or other surface and dry for several days at room temperature. You can also reduce the cooking time by drying the crusts in the oven with the door ajar at 50 degrees for about several hours.
Candied fruits from watermelon peels are very beautiful, tasty and unusual. Cooking such an appetizer is not too difficult, but rather troublesome in time. You can also reduce the cooking time by boiling the syrup in medium density in advance, then place the boiled peels in it and boil for another 5-10 minutes, leave to cool completely and repeat again, this will be enough. You can also experiment with taste by adding various fruits or berries, as well as flavorings. Such candied fruits are great as a snack for tea.