Blackberry Syrup, or would you rather a slice of pie?

Berries are plentiful right now, and the squirrel in me is transforming and tucking away these treasures for the rest of the year. I went to the berry farm today and what a selection! I was looking for blackberries, but went away with more blueberries, raspberries, and strawberries! They also offered currants and black raspberries, but…