I know what you’re thinking. You’re thinking that blackberry and basil seems like an odd combination to use in a jam recipe. You’re right. It is. But it’s a combination that works brilliantly well. Don’t think of the basil as tasting as it would in a pesto dish; it doesn’t come across as powerfully. Instead, this Blackberry and Basil Jam is a sweet and fragrant preserve, which will be enjoyed without so much as a frown.