I have made jam! There were many excess strawberries from having Picked My Own for Strawberry Wine and when I suggested that Claire turn them into jam, she urged me to have a go. So I did, and it worked! The jam set and everything. I see a new book in the offing: Ben's Adventures in Jam Making.
I opened this wine shortly after my condiment success, and it was less good than I had remembered, though Claire disagrees. The fizz didn't help, and I thought it thinner than usual.