A crostata is a rustic Italian tart. This delicious apple variation is best served with sweetened whipped cream or ice cream.
Preheat oven to 425 degrees F. Set apples in one bowl and sugar mixture in another; add flour to sugar mixture. Place mascarpone cheese in a third mixing bowl; stir in the grated orange rind and mix well.
On a lightly floured surface, roll dough into a circle approximately ⅛ inch thick. Place dough on a nonstick cookie sheet, or line a regular cookie sheet with parchment paper. Neatly layer half the apple slices on the surface of the dough, leaving a 1-½ to 2-inch border all around. Sprinkle all the cranberries over the apples. Sprinkle half the sugar-and-spice mixture over this, then dot with teaspoon-sized dollops of the mascarpone mixture. Top with remaining apple slices and sprinkle with remaining sugar-and-spice mixture.
Fold sides of dough up and over the edge of the filling. Brush dough with egg, and sprinkle dough and filling with 2 tablespoons sugar. Place an additional baking sheet underneath to catch any drips. Bake 10 minutes; lower oven temperature to 375 degrees F and bake 20 minutes longer. Remove from oven when golden brown; cool 20 minutes.