Bakers must use seaweed and sea salt in their cupcakes.

Four bakers get in the mood in an aphrodisiac-inspired cupcake challenge.

Duff Goldman challenges the bakers with wacky ingredients.

The bakers try to prevent their cupcakes from becoming extinct.

The bakers compete to have their cupcake featured at a charity event.

The challenge is to use foods found at a movie theater concession stand.

Modern ingredients meet the classic cupcake in this challenge.

Cupcake bakers vie to have their creations displayed at a Hollywood event.

The winning cupcakes will be featured at L.A. Kings Opening Night Fan Fest.

Winning cupcakes will be eaten at the Hard Rock Cafe's Pinktober concert.

Four bakers compete to have their cupcakes featured at an annual gala.

Weddings "take the cupcake" as four bakers go head-to-head.

Four cupcake champs fight to be featured in the renowned Rose Parade.

Bakers vie to have their cupcakes at the L.A. Auto Show's preview.

Veteran bakers return for a shot to serve at the Grammys nominee concert.

Bakers battle to display their cupcakes at a romantic wine-tasting event.