Phoebe asks Chandler and Monica what they want for an engagement present. All Monica wants is Phoebe's grandmother's chocolate chip cookie recipe so she can make the best cookies for her future children. Phoebe decides that she will give Monica the secret recipe, but when she goes into her old burned apartment, she realizes the recipe is destroyed. Monica, Phoebe and Ross try different recipes for chocolate chip cookies to see if they can re-create it from memory. Monica is afraid they may never figure out the right recipe until they discover it is actually the Nestle Tollhouse chocolate chip cookie recipe. Jack invites Chandler to play racquetball with him at the club. This is Chandler's big chance to bond with Monica's father. After the racquetball game, the guys decide to take a steam, but things get a little too cozy when Chandler accidentally sits on Jack's lap. Rachel teaches Joey to sail.