Shawn, 30, grew up eating his mom's chocolate chip cookies, but he always knew he could make them better. "I absolutely do," he firmly declares. However, his mom Diane, 46, thinks that Shawn's tweaking of her recipe leaves his cookies a bit crispy and dry. "I'm not sure how Shawn changed my recipe," she wonders, "so that's why there's been a lot of controversy between Shawn and I."

To settle their sweet rivalry, the pair bring their cookies to New York City to be taste-tested by Rachael's studio audience. At stake: bragging rights and a 3-night trip for four to Hershey: The Sweetest Place on Earth®. And for the loser? In addition to having a permanent "chip" on their shoulder, he or she will have to hit the city streets wearing a chocolate chip cookie costume and announcing that they have loser cookies!