In the pre-heat challenge, the seven bakers create spine-chilling desserts guided by spirits, such as bourbon and rum. Then they use fresh flavors and colorful decorations to bring old, dead desserts back to life in the main heat.In the pre-heat challenge, the seven bakers create spine-chilling desserts guided by spirits, such as bourbon and rum. Then they use fresh flavors and colorful decorations to bring old, dead desserts back to life in the main heat.