frosting1 tub (10 ounces) ricotta cheese drained o (see note below) 1 tub (16 ounces) mascarpone cheese drained if needed 3 cups powdered sugar (possibly more if needed to thicken frosting) 1 teaspoon vanilla extract 1 teaspoon fresh orange juice 1/2 teaspoon ground cinnamon 1/4 teaspoon salt 1 bag (10 oun