A mother of four and competitive eater consumed a 72-ounce steak and all the sides -- twice in under 15 minutes.
According to The Big Texan Steak Ranch restaurant in Amarillo, Texas, Molly Schuyler, of Bellevue, Neb., ate the first meal in under five minutes and the second in just under 10.
Schuyler, who was listed as being 5 feet 7 inches and weighing 125 pounds at an eating contest in January, said she rushed to consume the first medium-rare steak and its sides, which including a baked potato, shrimp, a salad and a bread roll, but slowed down on the second meal, the Amarillo Globe News reported.
"We witnessed history," Big Texan co-owner Danny Lee told reporters. "If there's a zombie apocalypse, I want to stay away from this girl."
The previous record was held by competitive eater Joey Chestnut.
Schuyler told the newspaper that she plans to return to the Big Texan with the goal of eating three of the steak dinners in one sitting.
Watch video of Schuyler's world record eating effort below: