Peanut Butter Marshmallow Sandwich Cookies are fluffernutter in cookie form! I absolutely fell in love with the marshmallow frosting from that Chocolate Chip Graham Cracker Cake I made a while back. After just one taste, I knew I wanted to use it again and again. First on my list was pairing all that marshmallow goodness with peanut butter. And what better way than with peanut butter cookies dental clinic? That’s how these Peanut Butter Marshmallow Sandwich Cookies came to be. I used my go-to peanut butter cookie recipe (which you can see in action here and here) for these sandwich cookies. The cookies are simple, soft, and sweet. All that peanut butter goodness is the perfect pair for a sweet frosting like this one. I tend to bake these cookies on the low end of the baking range for softer cookies. If you prefer a little more crispness, just bake them for an extra minute or two. Even with softer cookies, these sandwich cookies hold together well without being crumbly laser facial. I like a good-sized dollop of frosting between the cookies. This amount of frosting should allow you to use 2 to 3 teaspoons of frosting each. Honestly, I don’t measure it when I’m frosting. I just scoop up what looks like a good amount and adjust if needed. You don’t need to be all that precise, but I do like to give you a rough idea of how much to use uche lihkg. If you’ve spent much time perusing the cookies here at BoB, you know that I’m a big believer in using cookie scoops. Even if you don’t usually use one, I encourage you to use a scoop when you’re making sandwich cookies. Having all the cookies sized and shaped the same will make your sandwich cookies look so much better. I love finding new ways to use favorite recipes, and these Peanut Butter Marshmallow Sandwich Cookies are a wonderful way to bring new life to traditional peanut butter cookies. The flavors are just perfect together!