When blackberries are ripe during the summer, their sweetness and flavor is unparalleled. Take advantage of the harvest and use fresh berries when available! If you want a more refreshing blend, you can freeze your fresh berries, and even your bananas, which will create a texture almost like soft serve ice cream. Simply spread out your fruit in a single layer on a sheet pan and stash in the freezer until frozen solid; 2 – 3 hours. You can then store it in an airtight container in the freezer for up to 6 months or blend right away.