Yes, you can freeze them. But they are gooey! To freeze individual bars I recommend placing a small piece of parchment between them if stacking. Place all pieces in a plastic zipper bag and freeze for up to 3 months. Or you can leave them in the pan whole, then wrap them in a layer of plastic wrap and a layer of aluminum foil. For this, I suggest using a disposable metal pan that can go straight from the freezer to the oven.