Costco has some really nice fresh blackberries now. I was just at the store in Burbank, California. They are selling them in 18 oz. containers for $4.99. They are sold under various brand names, today they were selling Sunbelle brand:
These are fresh, ripe and juicy – perfect for making blackberry liqueur. They must be in season because last year almost to the day I made 5 batches from 3 of these 18 oz. containers of Costco blackberries:
If you want to make blackberry liqueur then now would be the perfect time to do it.