To make Amish friendship bread, you have to follow some strict rules. Sometimes the starter must be left alone (days 1, 2, 4, 5, 7, and 9). Then you have to open the bag and mush it around (days 3, 8); and add additional cups each of flour, sugar, and milk, and stir with a wooden spoon (day 6, 10); and of course bake it (day 10), using one third of the starter and the recipe that comes with it. (The secret ingredient: vanilla instant pudding.) As for the remaining two-thirds of starter: One you save for yourself to bake again, one you pass on to friend who will (you hope) carry on the tradition. Needless to say, my mom stopped giving it away years ago.