It's always a puzzle to determine which three bakers will make it to the finale; this time, Valerie Bertinelli and Duff Goldman make it a sugar cookie puzzle.

A new group of kid bakers introduce themselves via delicious "selfieclairs"; using a selfie as inspiration, the bakers create eclairs in assigned flavors and then decorate them to serve as a pate a choux pastry introduction.

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Valerie Bertinelli and Duff Goldman put the eight young bakers in teams and challenge them to each make half a cake that combines with their teammate's half-cake to make a whole cake representing an opposites theme.

Valerie Bertinelli and Duff Goldman love Italian food so much they challenge the bakers to create lasagna dessert imposters; the bakers must create meat lasagna, spinach-and-mushroom lasagna or veggie-pesto lasagna imposters.

Duff Goldman and Valerie Bertinelli challenge the kid bakers to make magic by creating a cake with a gravity-defying illusion on it.

In a moment of serendipity, Duff Goldman and Valerie Bertinelli create an ice cream sandwich with a doughnut … which gives them a great idea! The kid bakers will have to turn unexpected baked items like waffles, blondies and cupcakes into outrageous ice cream sandwiches.

The seven young bakers use Bundt cake pans to make giant doughnut cakes.

For the final episode, the bakers are tasked with creating cakes that look like a spaceship, aliens or another planet.

Valerie Bertinelli and Duff Goldman love birthday parties at the park so they take their inspiration to the Big Bake Challenge; the kid bakers are tasked with creating bite-sized birthday party desserts for an outdoor birthday party.

The 10 young bakers are split into teams for the brownies vs. blondies challenge.

Duff Goldman and Valerie Bertinelli are cooking something unusual in the science lab... it's the freaky flavor tarts challenge.

Dessert impostors come in all shapes and sizes, so Valerie Bertinelli and Duff Goldman challenge the five young bakers to make sweet dessert tacos that look like the real thing.

What's that beautiful arc of color in the sky? It's a rainbow! For this challenge, Valerie Bertinelli and Duff Goldman task the 10 young bakers with working in teams to create vibrant and dazzling cupcake rainbows.

Darci Lynne, a 13-year-old singing ventriloquist, and her puppet, Petunia, hang out at the ballpark with Valerie Bertinelli and Duff Goldman while they enjoy their favorite stadium snack of all -- popcorn.

Duff Goldman's favorite ingredient is revealed in the season's kick-off challenge -- bacon cupcakes.

Bakers must make imposter dishes that look like international dishes.

Bakers must make poke cakes that look like hedgehogs.

Bakers must bake a pie with late-summer fruits.

Interior decorating is the inspiration as Valerie Bertinelli and Duff Goldman challenge the five bakers to create beautiful decorations and mouthwatering layers in showstopping trifles.

It's the most-anticipated challenge of the competition -- dessert imposters! Valerie Bertinelli and Duff Goldman challenge the nine kid bakers to create breakfast, lunch and dinner imposters.

In the cookie face challenge, Valerie Bertinelli and Duff Goldman challenge each of the five bakers to create a giant cookie face with 3-D features that communicate an assigned expression like happy, sad, angry, surprised or excited.

The young bakers are challenged to create mini cheesecakes with colorful animal prints, from tiger and zebra stripes, to leopard and giraffe spots.

It's the most anticipated episode of the season — dessert impostors! Valerie Bertinelli and Duff Goldman challenge the remaining 10 bakers to create desserts that look like sandwiches. Order up!

Ice cream cones are for more than just holding ice cream. Hosts Valerie Bertinelli and Duff Goldman challenge the seven kid bakers to create impressive ice cream cone cupcakes in order to stay in the game.