Host Bridget Lancaster bakes celebration-worthy Yellow Sheet Cake with Chocolate Frosting, ingredient expert Jack Bishop gives a primer on the world of dark chocolate, and gadget critic Lisa McManus shares her favorite gear for baking cookies. Finally, test cook Erin McMurrer harnesses the power of science to make the best Chewy Peanut Butter Cookies.

Host Julia Collin Davison makes Gỏi Cuốn (Vietnamese Summer Rolls); equipment expert Adam Ried shares the best tools for maintaining your knives; and test cook Lan Lam makes a childhood favorite, Bò Lúc Lắc (Shaking Beef).