These chewy S'mores cookies are baked to perfection! Ooey gooey chunks of chocolate, marshmallows and graham crackers make you feel like you are at a campfire. You only need 15 minutes prep and 10 ingredients for these amazing S'more cookies.
Preheat the oven to 350°F (175°C). Line two baking sheets with parchment paper and set aside.
In a large bowl using a hand or stand mixer fitted with a whisk or paddle attachment mix the butter and brown sugar just until combined for about 1 minute.
Add the egg and vanilla and mix just to combine, for about 1 minute.
Then add graham cracker crumbs, flour, baking powder, and salt and mix just until combined, another 1 minute. Do not overmix at any step.
Using a rubber spatula or wooden spoon, fold in the mini marshmallows and chocolate until incorporated.
Spoon 12 evenly sized cookies on the prepared baking sheets with about 4-inch space in between. Bake the cookies for about 9-11 minutes. Please don't overbake your cookies. Remove them from the oven as soon as they start looking dry on the tops, puffed, and pale.
Let them cool on the baking sheet for about 10 minutes. Then transfer the cookies to a wire rack and let them cool completely. The cookies will stay fresh in an airtight container at room temperature for up to 4 days.
Replace the ground graham crackers with any other favorite cookie like a wafer. You could also substitute regular graham crackers for a chocolate variety of graham crackers too. Just note that the graham crackers give the cookies that traditional S'more flavor, so substituting will change the flavor some.
Substitute the same amount of chocolate chips (3/4 cups - 135 g) in place of the candy bar. You can choose any variety of chocolate you prefer, but milk chocolate is what I usually use.