Spider Cider is a consumable item sold at the Spider Bake Sales in the Ruins and Hotland.
- Using a Spider Cider or Spider Donut during Muffet's fight immediately makes her spareable.
- Buying a Spider Cider from the Spider Bake Sale in Hotland prevents the fight with Muffet entirely, except in the Genocide Route.
- Some spiders crawled down and gave you a jug. [Obtain]