If you do not live alone, it would be best to find a way to do it outside because 'cooking' antifreeze does not smell great to most people. Also, whatever container you use should never be used for food again.

Some of the "dollar" stores in my area sell crock pots for ten dollars or less. Sometimes I wonder why they call themselves "dollar" stores when so many items cost more than one dollar. Someone wrote in a similar thread that he saw one when passing a garage sale and actually got it for a dollar.