Week of Cookies continues on The Toasty Kitchen today with a rich, chocolatey cookie. Today I am sharing with you my recipe for Dark Chocolate Hot Cocoa Cookies. Not only are these cookies easy, they are an adorable addition to your holiday cookie tray. It’s like you’re looking down at a mug of hot cocoa, with marshmallows floating on top. The mini marshmallows are added in the last few minutes of baking, giving them just enough time to melt without toasting.