Open the chicken breast like a book and season. Salt and pepper to taste. Then put them in plastic wrap and form a square with the two breasts.
Crush the almonds and pistachios with a mortar and mix with the cherries. Put everything over the chicken; the serrano ham slices, mozzarella cheese, and spread the cherries and nuts mixture over all the breast.
Roll carefully so the stuffing does not come out and close tight with the plastic wrap. This will keep the juices and flavors in.
Bake in the oven, preheated to 350°F, for 35 minutes.
Allow to cool and cut to serve.
