Chocolate chip cookies and s'mores collide with these S'mores Cookie Bars. They have a golden brown outside with a soft and chewy center of melted chocolate and mini marshmallows. This easy recipe can be thrown together with classic cookie ingredients in less then 10 minutes with a 25 minute bake time.
Preheat your oven to 350 degrees Fahrenheit. Line a 9x9-inch baking pan with parchment paper or spray with nonstick spray.
In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy using a hand mixer. Beat in the egg and vanilla extract until well combined.
In a separate medium bowl, whisk together the flour, baking soda, salt, and cinnamon.
Add the dry ingredients to the wet mixture, mixing until just combined.
Gently fold in the chocolate chips and marshmallows.
Add the cookie dough to the prepared baking pan and using a rubber spatula or your hands work the dough so it covers the entire surface of the pan.
Optional: add 1/2 chopped chocolate bar on top.
Bake for 20-25 minutes until the edges are browned and a toothpick comes out with a few crumbs.
Remove from the oven and allow the cookie bars to cool in the pan for about 5-10 minutes. When ready to transfer either remove with the parchment paper or a place cutting board over the top of the pan and flip out onto the cutting board. To flip the top side back up use a second surface or cutting board, place on the bottom of the bars and flip over. Or just enjoy right out of the pan.
Cut into 12 equal squares and enjoy.
Notes
Only mix wet and dry ingredients until combined to ensure a soft and chewy cookie.
Nutritional information is an estimate and will vary with substitutions