Reese Witherspoon and Vince Vaughn play a happily unmarried couple who find themselves forced to partake in four different relative-smothering festivities in the crazy holiday comedy 'Four Christmases.' Click "continue reading" to find out Reese's favorite Christmas morning treat!

"I love to cook -- I make an applesauce cake every morning on Christmas morning," says Reese. "There's a lot of food involved in our Christmas."

In 'Four Christmases,' in theaters November 26, Reese and Vince find their annual holiday escape plans foiled when fog grounds their San Francisco flight. When their relatives catch wind that they're still in town, they find themselves forced out of obligation to endure a Christmas get-together with each of their respective divorced parents and wild siblings, played by Robert Duvall, Jon Favreau, Mary Steenburgen, Dwight Yoakam, Tim McGraw, Kristin Chenoweth, Jon Voight and Sissy Spacek.

"Everyone can relate to having to travel and the burden of having to make it to different homes for Christmas," says Vince. "We have the fun job of raising the stakes and going even further with it to make it funny."

"I think a lot of us thought a lot about how important it is to accept your family for who they are," says Reese about making the holiday comedy, adding, "Christmas is always great with kids around, so I'm really lucky I have two great kids. We have our traditions: we get to make cookies for Santa before Christmas Eve, and hang stockings and decorate the tree."

Watch ET for more with Reese and Vince behind the scenes of 'Four Christmases'!