The stage was set for a Halloween battle unlike any other on Beat Bobby Flay tonight, as two pastry chefs were eager to show off their tricks and treats for the chance to take on Bobby Flay. Katherine Clapner earned the Round 1 victory against fellow Texan Joe Baker and advanced to Round 2, where she quickly established herself as the dark horse in the face-off against Bobby.

Katherine's a professional baker, so it was no surprise when she declared her signature dish to be a baked good — devil's food cake — and immediately Bobby became nervous at the challenge. "I hate baking," he admitted, later explaining his struggles with it. "Baking is definitely my Achilles' heel," he noted. But in true Flay fashion, Bobby had a plan of attack. "I'm going to go for flavor, so I'm just going to use ingredients that I know go really well together," he said, opting for bold additions like cinnamon and chiles. Katherine too had a strong vision for her dessert, relying on a tried-and-true recipe that she was confident would best Bobby's. "[My] dish can undeniably beat Bobby, because Bobby's not in his comfort zone," she said. "And I've made the same recipe thousands of times." Just like Bobby, Katherine also utilized flavor-forward items, including what she called her "secret ingredient": stout beer. "It's a different caramel note," she said.

Despite a timid start, though, Bobby quickly found his groove in the kitchen, not just becoming confident but also "getting cocky," according to guest Sunny Anderson, and he even skipped his way back to his station. For Katherine, Bobby's assuredness only caused her to focus more. "I need to make sure that everything is firing on all pistons," she said. To complete her dish, Katherine set out to make several accompaniments for her cake, including a bourbon-spiked sauce and sweetened walnuts, much to the guests' delight. "A creamy sauce, a fluffy cake, something crunchy — yum," noted Laura Vitale, as she watched Katherine work on her components.

Once the 45 minutes of cooking time had ended, the focus turned to the judges, who blind-tasted Katherine's and Bobby's cakes. They found minor faults in both dishes but also praised elements of each of them; ultimately Bobby, the king of his own arena, fell to Katherine, who claimed her victory with excitement. "I'm going back to Dallas and I get to brag a whole lot," she declared.

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