CORINTH, Miss. — I had never heard of or tasted a slugburger until I visited Corinth, which, it turns out, is known as the slugburger capital of the world. I ate my first one at Borroum’s Drug Store.

This video examines the slugburger, a five-cent sandwich that became common during the Great Depression. The burger was made by stretching small amounts of beef with soy, flour, and fat to feed more ...