I’ve made these a couple of times. Usually I use “holy plum jam” that was made from the plum tree that used to be on the premises of my church (and made by one of my good church friends). Unfortunately, the plum tree had to be removed when the church was renovated, so we made need to find a new plum tree. This time I used Trader Joes Peach Jam and Blueberry Jam. They may not be “holy” muffins, but they’re still pretty good. Enjoy!