Yes! You can freeze these Pumpkin Brownies for up to 4 months. Simply allow them to come to room temperature and cool completely then slice. You can either freeze the whole (well wrapped) pan or lay the brownies out in a single layer on a baking sheet and pop it in the freezer. Once solid, individually wrap each brownie in plastic wrap. Then transfer them to an airtight container or sealed ziploc freezer bag for single serving portions.