So Where Do Lil Smokies Come From?

I'm grading essays (so I put them off until yesterday and today), and I see the following: "My family always loves coming together for anything. We love looking at old picture albums, roosting marshmallows, and baking cookies." I don't know much about farming. Do you get mini marshmallows when you let them "roost"? Curious practice. I've still got a lot to learn.