Yes! You can do it 2 different ways. If you wish to freeze a full batch, place in an airtight container and add a thin layer of oil over top to help preserve the color as best as possible when frozen. You can also make smaller frozen batches of pesto by loading it into an ice cube tray and freezing. Once frozen, pop them out of the ice cube tray and place the cubes in a date marked freezer safe bag for up to 6 months.