Ohio and Pennsylvania are home to 179,000 Amish, all of whom are expected after the eighth grade to end their formal studies to help the community.

Hidden in the heart of Amish Country sits a white clapboard time capsule where sandwich pilgrimages begin and diet plans go to die—welcome to the End of the Commons General Store in Mesopotamia, Ohio.

In the heart of Amish Country, where horse-drawn buggies still clip-clop down country roads, sits a white clapboard building that houses what might be Ohio’s best-kept culinary secret. The End of the ...