Triple-Layer Double Chocolate S’mores Crumble Bars

Irresistibly Gooey S’Mores Crumble Cookie Bars: A Double Chocolate & Marshmallow Delight

Experience pure joy with these ultimate S’Mores Cookie Bars, featuring luscious layers of double chocolate and toasted marshmallow crumble. This delightful treat combines white chocolate and semi-sweet chocolate for an extra rich and unforgettable chocolaty experience, all nestled atop a buttery cookie base.

Stacked S'Mores Crumble Cookie Bars with perfectly melted and golden-brown marshmallows on top
Dive into layers of gooey marshmallow, rich chocolate, and a crunchy cookie base with every bite.

The Magic of S’Mores: A Timeless Treat Transformed

S’Mores hold a special place in our hearts, conjuring images of campfires, starry nights, and shared laughter. But what exactly makes S’Mores so universally beloved and undeniably satisfying? It’s the harmonious trifecta of textures and flavors: the velvety, molten chocolate, the soft, sticky, and perfectly toasted marshmallow, and the satisfying crunch of a graham cracker. This classic combination evokes comfort and nostalgia, instantly lifting spirits and banishing any hint of gloom.

We’ve taken that magical experience and elevated it by merging the beloved S’Mores concept with another ultimate comfort food: the humble cookie. The result? These incredible S’Mores Crumble Cookie Bars, a dessert so good it’s a guaranteed remedy for any blues. Imagine sinking your teeth into layers upon layers of pure bliss, where every bite offers a symphony of flavors and textures that dance on your palate.

Our version is designed for maximum indulgence, featuring not just one, but two types of chocolate – rich semi-sweet and creamy white chocolate – generously distributed throughout. Add to that abundant, fluffy marshmallows that caramelize beautifully under the broiler, and a delightful cookie and crumble topping, and you have a masterpiece. These cookie bars are more than just a dessert; they are a gesture of happiness. Sharing them with friends and family is sure to bring smiles all around. Or, if you’re feeling a little selfish (and who could blame you?), grab a bar and make a quick getaway – just be sure to run fast!

I am absolutely confident that these S’Mores Cookie Bars will become a new favorite. The allure of S’Mores is simply irresistible. Even my sister, who generally shies away from marshmallows, can’t say no to the gooey, melted goodness in these bars. The blend of sweet, smoky, and chocolatey notes is simply too enticing to pass up.

Close-up shot of S'Mores Crumble Cookie Bars, highlighting the melted marshmallows and chocolate layers
The perfect texture: golden-brown marshmallows, soft cookie, and melted chocolate.

Perfect for Any Occasion: Summer Celebrations and Beyond

Whether you’re planning a festive 4th of July celebration, a casual summer BBQ, or simply looking for an impressive dessert to bring to a potluck, these S’Mores Crumble Cookie Bars are the ideal choice. Their easy preparation and crowd-pleasing flavors make them a go-to for any gathering. While it might seem counterintuitive to light a fire on a hot summer day, remember that it’s never too hot to enjoy the classic S’Mores experience, especially when it comes in such a convenient and delicious bar form. (Though, I admit, when looking at the scorching temperature predictions, a very small fire might be best!) So, enjoy your holiday weekend, savor your BBQs, cherish time with family and friends, and definitely don’t forget to indulge in these incredible cookie bars.

These bars are particularly fantastic for entertaining because they offer all the beloved flavors of traditional S’Mores without the mess and hassle of individual assembly. You can prepare them ahead of time, making party planning a breeze. Their robust structure makes them easy to transport, making you the hero of any picnic or gathering. Plus, the combination of a chewy cookie base, rich chocolate, and a crispy, sugary crumble provides a more substantial and satisfying dessert than a classic S’More sandwich.

Beyond summer, these bars are a fantastic year-round treat. Imagine them as a cozy dessert on a chilly autumn evening, or a delightful surprise at a winter holiday party. The comforting flavors of chocolate, marshmallow, and a buttery cookie transcend seasons, making them a versatile addition to your baking repertoire. They’re also wonderfully customizable; feel free to experiment with different types of chocolate, add a sprinkle of sea salt to enhance the flavors, or even incorporate a hint of cinnamon into the cookie base for an extra layer of warmth. The possibilities are endless when it comes to tailoring these bars to your taste preferences.

A large tray of S'Mores Crumble Cookie Bars, cut into squares, ready to be served
Perfectly portioned and ready to share (or not!).
3 layered double chocolate S'Mores crumble cookie bars stacked on top of each other on a dark wooden table as viewed from above

Layered Double Chocolate S’Mores Crumble Cookie Bars

These delightful S’Mores cookie bars are layered with rich white chocolate and semi-sweet chocolate, ensuring an ultimate chocolaty experience that’s both comforting and exciting.
5 from 2 votes

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Dietary Options
Course:
Dessert
Cuisine:
American
Prep Time:

20
Cook Time:

30
Total Time:

50
Servings:
12
Calories:

786
kcal
Author:

Lyuba Brooke

Ingredients

  • For the Cookie Base:
  • 3/4 cup unsalted butter (room temperature)
  • 1 extra large egg (room temperature)
  • 1 cup brown sugar
  • 1 tsp vanilla extract
  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • Dash of salt
  • For the Crumble Topping:
  • 3/4 cup brown sugar
  • 1/4 cup white granulated sugar
  • 1 cup all-purpose flour + 2 Tbsp
  • 7 Tbsp unsalted butter (melted)
  • For the Toppings:
  • 1 1/4 cup semi-sweet chocolate chips
  • 1 1/4 cup white chocolate chips
  • 16 oz bag of mini marshmallows
  • 1/4 cup hot fudge sauce
  • 1/2 cup crumbled graham crackers

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease a 13×9 inch baking dish.
  2. In the bowl of an electric mixer, cream together the room temperature butter and brown sugar on medium-high speed for 2-3 minutes, until the mixture is light in color and visibly fluffed. This step is crucial for a tender cookie base.
  3. Beat in the egg and vanilla extract until just combined. Make sure to scrape down the sides and bottom of the bowl with a spatula to ensure all ingredients are evenly incorporated.
  4. Reduce the mixer speed to low. Sift in the all-purpose flour, baking soda, and a dash of salt. Mix these dry ingredients on low speed until they are just combined and no streaks of flour remain. Scrape the bowl once more to ensure a uniform dough.
  5. Evenly spread the cookie batter into the prepared 13×9 inch baking dish. For easier handling and to prevent the dough from sticking, you might find it helpful to lightly grease your hands with non-stick cooking spray before spreading.
  6. Generously sprinkle both the semi-sweet and white chocolate chips evenly over the cookie layer. Follow with about 1/3 of the bag of mini marshmallows, distributing them across the chocolate chips.
  7. Prepare the Crumble: In a separate medium bowl, combine the brown sugar, white granulated sugar, and the specified amount of all-purpose flour. Mix these dry ingredients thoroughly until they are uniformly incorporated.
  8. Pour the melted butter into the dry crumble mixture. Using a large fork, gently fold the butter into the flour mixture. Be careful not to over-mix; the goal is to create large, distinct crumbs, not a smooth paste. This texture will give your bars that desired crispy topping.
  9. Carefully and evenly spread the crumble mixture over the chocolate chips and marshmallows, making sure not to press it down too firmly, which could compact the layers beneath.
  10. Bake in the preheated oven for 30-33 minutes, or until the crumble topping is golden brown and the edges of the cookie base are set. Remove the dish from the oven.
  11. Turn on your oven’s broiler to its lowest setting.
  12. Evenly spread the remaining mini marshmallows over the top of the partially baked bars, ensuring they cover the surface completely. Place the dish back into the oven under the broiler. Watch closely! Marshmallows toast very quickly under a broiler, so do not leave them unattended. Remove once they are perfectly golden and puffy.
  13. Allow the S’Mores Crumble Cookie Bars to cool completely in the dish before attempting to cut them. This cooling time is essential for the bars to set properly, preventing them from crumbling apart.
  14. Once cooled, cut the cookie bars into squares using a knife lightly greased with butter or cooking spray. For an extra touch of indulgence, drizzle warm hot fudge sauce over the top and sprinkle with crumbled graham crackers just before serving. Enjoy the delightful layers of flavor and texture!

Nutrition


Calories:
786
kcal

|

Carbohydrates:
118
g

|

Protein:
7
g

|

Fat:
33
g

|

Saturated Fat:
20
g

|

Polyunsaturated Fat:
1
g

|

Monounsaturated Fat:
9
g

|

Trans Fat:
1
g

|

Cholesterol:
67
mg

|

Sodium:
204
mg

|

Potassium:
274
mg

|

Fiber:
3
g

|

Sugar:
78
g

|

Vitamin A:
594
IU

|

Vitamin C:
0.1
mg

|

Calcium:
95
mg

|

Iron:
3
mg




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Individual S'Mores Crumble Cookie Bars, drizzled with hot fudge and graham cracker crumbles, ready to eat
Each bar is a delightful bite of chocolate, marshmallow, and cookie heaven.

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More S’Mores Inspired & Delicious Dessert Recipes:

Looking for more ways to enjoy the iconic S’Mores flavors or other irresistible cookie bars? Explore these fantastic recipes from our collection:


  • S’Mores Skillet Cookie
    : A giant, warm S’Mores cookie baked in a skillet, perfect for sharing!

  • S’Mores Cheesecake
    : All the flavors of S’Mores in a creamy, decadent cheesecake form.

  • Caramel Marshmallow Cookie Bars
    : A delightful twist with gooey caramel and fluffy marshmallows.
  • Classic Chocolate Chip Cookie Bars: If you love a good cookie bar, our classic chocolate chip version offers chewy goodness with melty chocolate in every bite.
  • Peanut Butter Chocolate Chip Bars: For peanut butter lovers, these bars combine rich peanut butter with sweet chocolate chips for an irresistible treat.
  • Lemon Raspberry Bars: A lighter, fruitier option perfect for spring and summer, bursting with zesty lemon and sweet raspberries.

These recipes showcase the versatility of dessert bars, offering convenient, delicious options for every taste and occasion. Whether you prefer the classic comfort of S’Mores or are looking to try something new, our collection has a treat waiting for you to discover.