Summer sauces are the star of the menu, starting with Katie Lee's Sweet and Spicy Grilled Chicken and Cucumber Salad and Geoffrey Zakarian's Seared Scallops with a Caper Honey Sauce. Sunny Andersonand Jeff Mauro share two new sauces for jazzing up grilled chicken: Lemon Pepper Sauce and Cherry Pepper Honey Mustard. Sunny also makes a T-Bone Steak with an "Any Herb" sauce, and Kansas City pitmasters Jason and Megan Day drop by to make a BBQ-inspired Potato Salad. For dessert, it's a head-to-head Sundae Sauce-off with Katie's Roasted Peach Sauce and Geoffrey's Boozy Chocolate Sauce.