Yes, these freeze well. Once completely cooled you can place them in a freezer zip bag or freezer-proof container and freeze them for up to 3 months. I like to freeze them on a flat surface for at least 30 minutes. Then arrange them however fits best into your freezer in the ziplock bag or container. Remember to label and date them as well! To thaw remove from freezer and thaw at room temperature. The nice thing about these individual brownie cups is you can take out as many as you would like at a time.