The traditional Amish Friendship bread is a yeast based recipe. Not sure if the results will be what you're looking for. They'll be quite dense for sure. Not cake-like; like a blueberry muffin would be. I'd fill the cups about 2/3.
Yes .. I believe the starter is made with yeast
I figured they would be on the dense side but I think the convenience of muffins will be a nice change .. moreso to pass out in an easier way
why wait for 8 days?
It's started with a cup of batter ( someone gives it to you ) that "ferments" for 5 days then you add some milk /flour/ sugar (stevia) to it and let it "ferment" some more for another 5 days .. then you add milk / flour/ sugar (stevia) .. separate out 4 starter bags and make bread/muffins with your remaining batter after you complete adding all the ingredients needed to bake it up ( salt / cinnamon / baking soda / baking powder / chopped nuts and golden raisins )
you give away 3 bags of starter and spread the yumminess