Orange crisp

400 grams of organic oranges (or organic lemons), 100 grams of peeled almonds, 100 g pistachios, 450 g sugar

Thoroughly clean the rinds of oranges or lemons, taking care to remove the inner white pith, and cut then into very thin slices. Now put them in water and bring to a boil, then strain. Repeat this three times. Reduce the dried fruit in slivers rather thick and toast in a skillet stirring continuously for about ten minutes.
Put 300 grams of sugar in a pan with a little water, Cook a few minutes, stirring constantly until it starts to boil, forming a foam. At this point, lower the heat and add the orange peel; Let go for 15 minutes stirring constantly. Then add nuts, remaining sugar and, wishing, Vanillin, Cook another 10 minutes, stirring constantly.
Line a baking tray with parchment paper or aluminum foil and pour the mixture trying to level it off until a thickness of one centimeter. Let it cool, even in the refrigerator, and serve cut into squares.