To kick off this special season featuring the youngest cast ever, hosts and judges Valerie Bertinelli and Duff Goldman ask the 12 kid bakers to pay homage to the brilliant transformation of the butterfly by making colorful carved butterfly cakes. After judging, one baker leaves the competition.

The Kids Baking Championship snack mine is the inspiration for this week's challenge as hosts and judges Valerie Bertinelli and Duff Goldman ask the 11 young bakers to use three snack items -- potato chips, pretzels and chocolate candies -- in one delicious kitchen sink dessert. In the end, one baker goes home.

In the grand tradition of dessert rivalries, hosts and judges Valerie Bertinelli and Duff Goldman divide the 10 kid bakers into two teams for a good old-fashioned chocolate vs. peanut butter throwdown. To up the stakes, the winner of the challenge will earn immunity from elimination for their entire team! After the dust settles, one baker from the losing team is eliminated.

Hosts and judges Valerie Bertinelli and Duff Goldman ask the nine kid bakers to turn miniature cookies and chocolate-covered dried fruit or nuts into cookie cereal. Glass of milk, anyone? One baker is eliminated.

Hosts and judges Valerie Bertinelli and Duff Goldman ask the eight kid bakers to work in teams of two to build and decorate tasty and beautiful team puff designs made of two different colored and flavored cream puffs. In the end, one baker leaves the competition

It's the beloved imposters challenge, and hosts and judges Valerie Bertinelli and Duff Goldman ask the young bakers to create grilled dessert imposters with side dishes like ribs and mac 'n' cheese or hot dogs and baked beans. The least successful baker goes home.

For this challenge, hosts and judges Valerie Bertinelli and Duff Goldman ask the bakers to combine a lot of small parts to create one big whole by making cosmic cupcake pull-aparts decorated to look like the sun, a rocket, Saturn, a comet or the moon. At the end of the mission, one baker is eliminated.

In one of the most difficult challenges of the season, hosts and judges Valerie Bertinelli and Duff Goldman embrace the "loaded" foods trend by asking the remaining kid bakers to make loaded.

In this over-the-top finale, hosts and judges Valerie Bertinelli and Duff Goldman ask the youngest final three bakers in the history of the show to make a championship-worthy, two-tiered.