This was very heavy on the coffee fresh, but just a day later I'm in love. You can find info for coffee extraction at /r/ecr or in my Coffee & Cream recipe on this site.
I made a 30 mL batch of this last night and LOVE it!!! I only had toasted marshmallow on hand, and this seemed to work out fine. I love the coffee and cream in the background. If I was to alter this at all, I might add just a few drops of caramel or butterscotch.