Halloween is fast approaching, but don't fret if you haven't decided what to be yet! In round one, hosts Jet Tila and Rosanna Pansino task four expert cookie makers with creating two costumes out of cookies! Things start to get spooky in round two as the cookiers construct 3D haunted buildings. To make sure their displays have a hauntingly delicious taste, they incorporate spirits like black raspberry liqueur, melon liqueur, absinthe and orange aperitif. One cookie monster will walk away with a trick-or-treat bag filled with $10,000 and the title of Halloween Cookie Champion.

Hosts Jet Tila and Rosanna Pansino flip the switch on Halloween as four talented cookie makers swap good and evil with their cute and creepy Halloween cookie characters. Then, the cookiers use their most deviously delicious recipes to craft 3D ancient spell books with the right amount of black magic from ingredients like black cherries, black tea, black sesame seeds and blackberries. One cookie spellcaster will earn a $10,000 prize and the title of Halloween Cookie Champion.

Hosts Jet Tila and Rosanna Pansino set the stage for four top cookie makers to create the perfect Halloween scene as they emerge from the shadows with spooky silhouette cookies. Then, the cookiers must craft 3D spherical cookies depicting the most-notable Halloween icon of all time: the jack-o'-lantern! To help the competitors light up the night, they'll use orange-colored ingredients like dried mangos, sweet potatoes or curry powder. One lucky cookie carver will go home with the $10,000 prize and the title of Halloween Cookie Champion.

Four fantastic cookie makers look to disguise hosts Jet Tila and Rosanna Pansino with festive Halloween masks made from cookies. Then, the cookiers really get the hang of things as they craft edible Halloween party banners that can actually be hung up. The competitors will have to indulge their sweet tooth while using ingredients like candy corn, chocolate taffy, grape-flavored lollipop, and peanut butter candy. One winner will claim sweet success as they take home the $10,000 price and the title of Halloween Cookie Champion.

Hosts Jet Tila and Rosanna Pansino have some unconventional colors in mind as they challenge four talented cookie makers to give classic Halloween designs a makeover! Then, the cookiers face a huge undertaking as they dig up 3D cookie graveyards filled with creepy characters and bloody-good ingredients, including Amarena cherries, pomegranate seeds and blood oranges. Blood-curdling screams have been heard in the lab, especially when one lucky cookie maker escapes with the $10,000 prize and the title of Halloween Cookie Champion.

Four expert cookie makers have hosts Jet Tila and Rosanna Pansino thinking twice before taking a bite of their hyper-realistic body part cookies. Then, the cookiers find their inner witch to work their magic on 3D cookie cauldrons. To make sure one bite is all it takes to fly out of the lab with the $10,000 prize and the title of Halloween Cookie Champion, these brews will be made using potent ingredients like lavender, dried chilis, fennel pollen, truffle oil and balsamic vinegar.

It's the day after Halloween, and all the spooks are exhausted from their night of hard work. Four talented cookie makers show hosts Duff Goldman and Rosanna Pansino how the creepers relax the next day. The three cookiers who advance to the second round try to bury the competition while making 3D ancient coffins. To give their ancient coffins an "authentic" flavor, they'll need to use "mummified" ingredients like dried figs, dates, dried apples and dried cherries. One winner will take home the $10,000 prize.

Four cookie masters try out a hot Halloween trend by decorating half-face makeup cookies! One half of their face cookies are a self-portrait, while the other half will show off their scary makeup. After hosts Duff Goldman and Rosanna Pansino decide who will move on to round two, the remaining cookiers take Halloween gore to a new level by making life-size oozing zombie parts out of cookies! To ensure their zombie parts overflow with goo, they'll need to use oozing ingredients like blackberry jam, orange marmalade, raspberry jam and cranberry sauce. One cookier will take home a $10,000 prize!

Four expert cookie makers turn the tables and show hosts Duff Goldman and Rosanna Pansino what would happen if our favorite Halloween treats wanted to eat us. After one baker is eliminated, the cookie makers reveal their talents by making two-sided trick-or-treat bags, with on side being light and fun while the other is dark and spooky. Naturally, a trick-or-treat bag is filled with candy, so these bags must be made with sour lemon candy, black licorice, cinnamon candy or peach rings. One trick-or-treater will walk away with an extra-sweet $10,000.

Four expert cookie makers are looking to scare the pants off of hosts Duff Goldman and Rosanna Pansino by making cookies showing three levels of a haunted house! Then, the three remaining cookiers host a séance by making playable spirit boards. To make sure there is maximum "spirit" in their boards, they will include spirits like apple brandy, cinnamon whiskey, coffee rum and black currant liquor. Only one cookie maker will spirit away with the $10,000 prize.

Edible stained glass is one of the most colorful and bewitching trends in the cookie world, and four cookie experts make glowing Halloween stained glass cookies for hosts Duff Goldman and Rosanna Pansino. After one cookier is eliminated, the remaining three masters build giant, elaborate Halloween funhouses that would thrill any Halloween carnival-goer. The judges will really feel like they are at a carnival as the bakers must incorporate fun fair flavors like caramel apples, grilled corn, popcorn balls and deep-fried sandwich cookies. One talented contestant will take home a sweet $10,000 prize.

Today in the laboratory, four top cookie makers take on one of the hardest technical challenges in the cookie world -- slice and bake cookies! Then, hosts Duff Goldman and Rosanna Pansino reflect on the remaining three cookie makers' creepy 3D haunted mirrors -- each with something spooky trapped inside! Old, haunted mirrors are always cracked, so the cookiers will have to incorporate "cracking" ingredients like kettle chips, pretzels, corn chips and plantain chips. The best mirror-maker will make off with a crackling $10,000.