“That was it,” said owner Ricardo Luna. “Time for a new challenge.”

To replace the popular contest, Luna and his partner, and self-proclaimed burgerologist, Jay Hengtgen, came up with two challenges. One is the Double Dog Dare, a beefed up burger challenge; the other is Charlie’s 5 Alarm Fire Burger. It was the latter that lured the Food Network’s Meat & Potatoes host Rahm Fama to Houston earlier this year.

Luna says Charlie’s 5 Alarm Fire Burger was inspired by a customer’s request for a spicy burger. Hengtgen developed the sandwich, which is a standard LBBB burger topped with six freshly sliced jalapeños, six freshly sliced habaneros and an “elixir” that registers 10,000,000 on the Scoville scale. The elixir’s official name is Nitro Sauce and includes arbol peppers, diced dry chilies, crushed red pepper, garlic salt, cayenne pepper, jalapeño salt, liquid capsaicin, five bottled hot sauces (including a ghost chili sauce) and fresh habaneros.

There’s no time limit on finishing the fiery hamburger.

“We get a lot of chili-heads coming in for that burger,” Luna said, adding that the burger joint sells an average of five of week. About twice a week, customers will take the Double Dog Dare Challenge. Most bring along friends and a video camera. (A quick search of YouTube turns up dozens of videos featuring the LBBB challenges.)