Yes, these chocolate orange brownies can be frozen for up to 3 months. Allow the brownies to cool completely then cut into serving-size pieces. Rather than freeze the whole lot in one bag, freeze in small lots. Place the brownies in a freezer bag or tightly wrap in plastic, label, and date before freezing. When needed remove the required amount of brownies from the freezer and allow them to thaw at room temperature for several hours before serving.