Cooking food over an open flame can impart smoky flavor and seal in savory juices, but cooking food over an eternal flame can get a bobsledding team kicked out of the Olympics. Get your fill of flame-cooked fare with today's Groupon: for $5, you get $10 worth of hot dogs, sandwiches, and more at Jimmy John's Pipin' Hot Sandwiches in West Chester.

Since 1940, Jimmy John's Pipin' Hot Sandwiches has lovingly prepared a menu of American diner classics including an award-winning hot dog. In contrast to its tube-shaped cousin, The special frankfurter ($2.45) sports a natural casing, while 8-ounce hamburgers ($4.25) and 12-ounce cheeseburgers ($5.99) grace stomachs with their presence after being slathered in a variety of self-serve toppings. Jimmy John's augments its sandwich accouterments with homemade chili as a topping ($0.35 extra) or side ($3.75/large) and grill-fresh bacon ($0.60 extra) for diners hankering for porcine delights. Meatless meal accessories, including sides of fries ($1.95/medium) and onion rings ($1.95), reenergize diners who have just swum a mile while wearing chain mail, and 20-ounce milkshakes ($2.25) coat esophagi with vanilla, chocolate, strawberry, or elusive seasonal flavors.