Blake Lively and Ryan Reynolds
06/09/2011 AT 03:00 PM EDT
Superman has kryptonite. The Green Lantern has baked goods.
To make sure Ryan Reynolds
didn't steal the spotlight, costar Blake Lively
hit him with his ultimate weakness: cupcakes.
"It was just a way to sabotage Ryan," Lively, 23, said jokingly at a Los Angeles press conference for The Green Lantern
, which opens June 17. "He was working out as much as he was, and I’m the girl. I’m supposed to look better."
The Gossip Girl
actress, who brushed up on her cooking skills at Le Cordon Bleu in Paris a few months ago, said she loves "to cook everything and anything."
"The most cooking I did was on this film," she said. "New Orleans was a great place to cook and eat."
Reynolds was happy to snatch up Lively’s sweet treats.
"[For] most actors, it’s coke and guns," he wisecracked. "For me, it’s baked goods."