CHop up fine and put in airtight container . Give it a shake so that all the leaves don't lump together . About thins time of year I strip my plants as I only kill them in the winter. I do leave some whole leaves as well and snap off the stalks as I need them. Another idea is to chop super fine and shove in a small bottle of good olive oil.- I use a small funnel take some of the oil out first shove in the basil and pour oil down the funnel so it washes it back in.