Michigan grows more apples than all but two states, about 25 million bushels a year. A good share becomes cider, and wherever there's cider, somebody is frying donuts.
Metro Detroit's mills are old. The oldest on this route dates to 1837, and one still runs on the river that turned it in the 1800s.
The route starts north of Detroit, works south through the mills, crosses into Ohio west of Toledo, and ends east of Cleveland. Call it two days, with a night in Toledo or Cleveland.

