Peanut Butter's mom has a bun in the oven, and Peanut Butter is going to be a big brother! He's pretty excited, but also a little bit scared. Just what does a big brother do? Luckily, Peanut Butter has just the right friends to ask. Apple Pie has two little brothers, Blueberry and Cherry, and she makes it look easy. Cucumber is definitely a cool older sibling to little Dill Pickle. And Big Cheese is clearly an important friend to ask. But do any of them know how to teach Peanut Butter what to do? Will any of them be able to help him crack this nut? Terry Border brings back everyone's favorite slice of bread in his latest food- and fun-filled book, which celebrates siblinghood in all forms, whether crunchy, smooth, or anywhere in between.