S’mores Smash Cookie has a soft graham cracker cookie base topped with milk chocolate ganache, toasted marshmallow frosting, and crushed graham, mini marshmallows and drizzled chocolate.

S’mores Smash Cookie

Summer speaks of camping, cook outs, nights next to a fire, and s’mores. But lately fires are prohibited because of dry conditions and sometimes we don’t have time for the fire pit in our yard. However, we can still enjoy s’mores anytime with this S’mores Smash Cookie.

The S’mores Smash Cookie is unique because it starts with a graham cracker cookie base. And the graham cracker cookie (a scooped cookie that is smashed before baking) is yummy enough to stand alone—unfrosted! But add a milk chocolate ganache to the top and the flavor is enhanced. Top that with toasted marshmallow frosting, a little drizzle of milk chocolate ganache, and some graham cracker crumbs… a S’more Smash Cookie is born!

But just so everyone knows what they are eating… add a square of Hershey chocolate and a couple of mini-marshmallows. If you happen to own a kitchen torch, toast the mini marshmallows just for fun!

Ingredients Needed for the S’mores Smash Cookie:

Here’s a little explanation for some of the ingredients:

Unsalted butter: I prefer this over salted butter! In the cookie, the butter creates a crisp outside edge. In the frosting, it contributes to the amazing taste!
Shortening: These cookies use a little shortening to keep the cookies soft. It works like magic! In the frosting, shortening actually helps create a crust, whereas just butter stays soft longer. For a cookie, and for stacking, a little shortening really helps.
Brown sugar: A must so the graham cracker flavor will really stand out!
Sour cream: A room temperature ingredient and a substitute for not using eggs.
Graham Crackers: Any graham flavored cookie/cracker will work perfectly. I chose to use the store brand honey graham crackers.
Salt: I really prefer natural or kosher salt. My recipes are created accordingly. If you are using table salt, use less! However, I do put salt in the recipes because it boosts the flavors it surrounds, and it counterbalances the sweetness. Sometimes frosting can be too sweet, the salt helps tone it down!
Milk chocolate chips: Buy quality chocolate chips. It really makes a difference! My favorite is Ghirardelli or Guittard. I love that we can just buy quality at the grocery store now! I chose milk chocolate because that’s the true flavor of a s’more. You could substitute for dark chocolate if you desire.
Heavy whipping cream: An essential ingredient for ganache.
Marshmallows: You need to buy both large-size and mini marshmallows for this recipe. The large marshmallows will be toasted in the oven. The mini-marshmallows will be used as garnish.
Hershey chocolate snack bars: When you break these into fourths, they are the perfect size for a cookie!

How to Make S’mores Smash Cookies:

Graham Cracker Cookie Dough:

Preheat oven to 350° F (177° C) and lightly grease baking sheets.
Measure flour, baking powder, and salt. Whisk together and set aside.
Finely crush graham crackers with food processor or Ziploc bag with rolling pin. Set aside.
In mixer with paddle attachment, cream ingredients in this order, scraping bowl between each addition:
- butter and shortening for 3 minutes on medium-high speed
- granulated and brown sugars for 3-5 minutes on medium-high speed
- sour cream for 1 minute on medium speed
- crushed graham crackers for 1 minute on low speed
Add flour mixture all at once. On low speed, mix just until all the flour disappears.
Using a 2” cookie scoop, place dough on lightly greased baking sheets (8 cookies per pan).
Lightly spray bottom of flat-bottomed glass with cooking spray. Dip in sugar and press cookie flat (to about ½-3/4” tall). Leave a rough edge around the cookie.
Dip in sugar again before pressing each cookie.
Bake at 350° F (177° C) for 11-12 minutes. The cookie tops are barely firm and not browned on edges. DO NOT overcook! Allow the cookies to cool in the pan. The cookies will continue to cook slightly.

Milk Chocolate Ganache:

Heat the cream in a microwave safe bowl for one minute. Pour cream into a bowl of milk chocolate chips. Stir until smooth.
If further melting is needed, heat bowl of chocolate in microwave for 30 seconds more. Stir. Set aside at room temperature.

Toasted Marshmallow Frosting:

In bowl of stand mixer, cream butter until light and fluffy, about 2-3 minutes. Scrape bowl. Add powdered sugar, salt, and vanilla all at once. Mix on low speed until clumps form. Scrape bowl.
Place large marshmallows on baking sheet covered with parchment paper or silpat and sprayed with non-stick cooking spray. Carefully watch marshmallows while broiling them on high heat until they are golden brown. Use tongs to flip each marshmallow over and repeat broiling process until both sides are golden brown. Remove from oven and let cool slightly. Dump toasted marshmallows into bowl of frosting.
Then, mix on medium-high speed until fluffy and light, about 2-3 minutes. Set aside. If frosting gets too soft, put in refrigerator for 20 minutes.

Assemble Cookie:

When cookies are completely cool, spread 1-2 teaspoons of Milk Chocolate Ganache on tops of cookie (leaving the thin, rough edge around cookie without frosting). Use a disposable decorating bag to easily squeeze ganache on the cookie. Let ganache set completely; use fridge to set faster.
Spread a generous Tablespoon of toasted marshmallow frosting on top of the ganache (leaving a slight edge of ganache showing). Drizzle with leftover ganache.
Immediately set mini square of chocolate on 1/3 side of cookie and 3 mini marshmallows on 2/3 of cookie. Sprinkle with crushed graham crackers. Use torch to lightly toast the 3 mini marshmallows, if desired.
Cookies are good served at room temperature, from the refrigerator, or even frozen!

Enjoy S’mores Smash Cookies anywhere, for any celebration, and maybe just when you need a taste of summer!

–Kim

Print Recipe

S’mores Smash Cookie

S’mores Smash Cookie has a soft graham cracker cookie base topped with milk chocolate ganache, toasted marshmallow frosting, and crushed graham, mini marshmallows and drizzled chocolate.

Prep Time40

Cook Time24

Course: Dessert

Keyword: cookie, graham cracker, marshmallow, milk chocolate, smash cookie

Servings: 18 cookies

Author: Kim Melanson