These start with a graham cracker crust, then topped with a cookie layer, and finished off with extra chocolate, marshmallows, grahams.

S'Mores Cookies Bars are great for a crowd! Made in a sheet pan, this easy recipe has marshmallows, chocolate, and graham crackers.

These s’mores cookie bars are the next best thing to a backyard campfire roast.

S'moreo Cookie Bars contain Oreo's for the biscuit part of the s'mores. They are surrounded by cookie dough and marshmallows!

Nutella S’mores Bars are an ooey gooey cookie bar filled with a LOT of Nutella and marshmallows for a gooey, sweet comfort treat!

Gooey Oatmeal Cookie S'mores Bars. Chocolate chip oatmeal cookie base filled with a chocolate fudge and melting marshmallows.

A cookie filled with chocolate chunks and topped with an ooey gooey marshmallow.

Ooey gooey s'mores cookie bars may be messy but they are oh so good!