Boil Water

you can cause up to 5 cubic feet of any water you can see within 5ft to reach its boiling point. The water will stay boiling for up to 1 hour or until you choose to stop the spell. Once the spell has stopped the water returns to its normal temperature after 1 hour. 

While the water is boiling, any creature in contact with the water, at the start of their turn takes 2d6 fire damage.