Sour plums make for sweet jam: tart and perfect for adding nontraditional spices. Think habaneros or cardamom and get the canning pot ready! These recipes are made with non-freestone plums, so the bulk of the work is in pitting. Happy canning!
The Santa Rosa plum is rich and tangy, with soft flesh and a nice floral character. It’s yellow on the inside and red or purple on the outside. They tend to be smaller than commercially available plums, so require a little more work to make jam.