The Santa Rosa plums were harvested from Don’s tree, never refrigerated, and preserved within two days. These plums are intensely fragrant and fragile, and cannot be grown commercially, but can be found at some Farmers’ markets. This jam is a wonderful base for a Chinese plum sauce or a sweet basting barbeque sauce, but this breakfast reminds me that there is a reason some combinations persist through the centuries: a warm, fresh biscuit with a preserve redolent of an heirloom fruit simply has no match. If you have a suitable place, consider planting both a Santa Rosa Plum and a Blenheim Apricot tree. These heirloom fruits rightly deserve a place in your garden, and will reward you richly.