Sourdough Starter

I grew up very near an Amish settlement and have always admired the ways of their kitchens.  I discovered this book at my library, and I have enjoyed reading through the stories and the recipes.  The chapter on breads gives a recipe for sourdough starter and also includes recipes using the starter.  I've made my own sourdough starter before, but this one took a little different twist in letting the yeast and the water sit for several days in the refrigerator before adding the dry ingredients.  I started some last night, we'll see how it goes...and grows!  Lovina, the author, has included a recipe for cinnamon rolls using the starter.  I've never made cinnamon rolls with sourdough before - I can't wait!