Durum-WW-Rye Baked Potato Buttermilk Sourdough

This was a nice flavorful bread made with fresh milled Durum, Rye and Rouge de Bordeaux whole wheat. I used some baked potatoes that were mashed up but still chunky so you end up with a rustic bread with pieces of potato throughout.
The buttermilk was originally going to be used in my English Muffins but I forgot so I pivoted and used it in this bake instead. It adds a little extra tang to the final bread.