Victual

Choose one piece of food or drink. You magically infuse that piece of food or drink with the necrotic essence of rot. One minute after a creature consumes the food or drink, it starts to rot or spoil inside the creature, which must then make a Constitution saving throw or become Poisoned for 1 hour.

Alternatively, you can magically infuse the food or drink with the poison used as a material component. Using the material component in this manner consumes it when the spell is cast.

The piece of food or drink appears normal, except to a person casting the Detect Poison And Disease spell.