Create a potion in the lab

The potion lab is access via the house with the crooked painting

Inside the potion lab, the player finds a cauldron. After picking a random assortment of items from around the room, the player makes a potion. The items do not matter and will only affect the color of the potion.

IDEA: There is also a chest in the potion lab. It contains a key to unlock the blacksmith's house.