What are some good cookie recipes with marshmallows inside?

I recently saw a recipe from a newspaper somewhere about cookies that have marshmallows in the inside (or a marshmallow mix) They were called cocoa cloud cookies or something, but does anyone have or know of some good recipes for cookies like this? Thank you!

What are some cool twists on chocolate chip cookies?

I am making chocolate chip cookies tomorrow for Thanksgiving, what are some cool twists I can do, such as chocolate chip cookie s’mores?
Also any cool twist ideas for apple crumb pie?
I mean twist as in addition, like s’mores are adding marshmallow and chocolate coating to the cookies, not changing the cookies