Sweet Rose Bakes is back, Fridays from 1:00 – 4:00 in our store in Brookline, serving up samples of delicious treats made from ingredients we carry in the store. This cake uses delicious Elderberry Balsamic Vinegar from Seka Hills.   Blackberry and Elderberry Balsamic Cake Serves 6 to 8 1 pint of fresh blackberries ¼