A soft cookie base is covered with gooey marshmallows and melty chocolate chips for the the ultimate S’mores Cookie Bars recipe. Bite into warm and gooey deliciousness to experience the dramatic pull of marshmallow and chocolate … you’ll be swooning over these from the first bite!

Three s'mores cookie bars are stacked upon one another. The top bar has a bite taken out of it to show the soft texture and melty chocolate. There are more s'mores bars and a glass of milk in the background.

These sweet and fudgy cookie bars are the perfect indoor alternative to traditional s’mores. Plus they’re made with only 11 ingredients and take less than 30 minutes start to finish, there’s no excuse not to try these 🙂

For another s’mores inspired creation, check out my Caramel S’mores Bars – they have the traditional fudgy, gooey, and utterly delicious s’mores flavor but with a vegan caramel twist. So good!

Ingredients in S’mores Cookie Bars

Almond Butter – My favorite neutral nut butter to use for baking sweets. I prefer to use a natural nut butter that’s 100% almonds with nothing added. I will usually get from Trader Joe’s, Whole Foods, or the bigger container from Costco!

Egg – This helps bind the cookie base together while baking so it doesn’t fall apart.

Coconut Sugar – One of my favorite refined sugar free sweeteners to use. Gives a slight caramel-esc flavor to these s’mores bars.

Maple Syrup – Another refined sugar free sweetener that pairs wonderfully with the coconut sugar. Also adds a touch of moisture to the cookie bars.

Gluten Free Flour – My go to blend is the Gluten Free 1-to-1 Baking Blend from Bob’s Red Mill. Feel free to experiment with other gluten free flour blends then comment below what works for you!

Graham Crackers – These s’mores bars wouldn’t be complete without graham crackers! To keep these bars gluten free be sure to use a brand such as Pamela’s Gluten Free Graham Crackers or these Smoreables Graham Style Crackers.

Chocolate Chips – You can use any type of chocolate that you’d like, whether that be milk, dark, or semi-sweet.

Marshmallows – I love to use Dandies Marshmallows because they’re vegan yet you’d never guess. The texture and flavor is just as good as conventional marshmallows!

How to Make S’mores Cookie Bars

1. Preheat the oven to 350F and line an 8”x8” pan with parchment paper.

2. In a large mixing bowl, whisk together almond butter, egg, coconut sugar, maple syrup, and vanilla extract until combined.

3. Add in your gluten free flour, salt, and baking soda. Stir until just combined.

4. Fold in your chopped graham cracker pieces.

5. Move batter to the parchment-lined 8”x 8” pan and spread in an even layer.

6. Top with a layer of chocolate chips followed by a layer of marshmallows, spread evenly and lightly press into the dough with your hands.

6. Move to the oven and bake for 24-26 minutes, or until a toothpick comes out with no crumbs*. Remove and let cool completely before cutting into 12 squares.

*avoid inserting a toothpick in melted chocolate or marshmallows, the bars will be gooey there.

A hand holds a s'mores cookie bar up to the camera. The texture looks soft and fudgy with melty chocolate and toasted marshmallows on top. There are more s'mores bars blurred in the background.

Trader Joe’s Almond Butter

As I mentioned above, almond butter is a great neutral flavored nut butter for baking with. It gives a slight toasty aroma without covering up the natural flavors of the recipe.

I usually stick with an almond butter that’s 100% roasted and ground almonds, no oil or salt added. This is just a personal preference of mine as I prefer it plain and think it’s best for baking (added oil and salt can impact the recipe flavor and texture)

Typically I use Trader Joe’s Almond Butter for this exact reason, but Whole Foods also has a pure blend. Other brands with this 100% almond option include: Once Again or Artisana Organics.

A fresh baked batch of s'mores cookie bars are sliced into twelve pieces on white parchment paper. The marshmallows are toasty and the chocolate is melty overtop the cookie base. There are more graham crackers, marshmallows, and milk in the background.

Homemade Almond Butter

Another option for the almond butter is to make your own! I’ve done this in the past and while it does take more time, it can be cost efficient if you buy bulk almonds + you get to customize what goes into it (if anything at all)

I usually start by roasting 3-4 cups raw almonds at 350F for 10 or minutes, just until they start to be fragrant and warm to the touch. Transfer the roasted almonds to a high speed blender or food processor then start to blend.

You may need to scrape down the sides a bit as you go but it should eventually start to blend. The almond mixture may form a big ball shape before blending into a smooth and creamy nut butter.

Use as you would any other almond butter and store in the fridge for up to 2 weeks or so. Let me know if you give it a try!

Three s'mores bars are stacked upon one another. The top bar has a bite taken out of it to show the soft texture and melty chocolate. There are more s'mores bars and a glass of milk in the background.

How to Store S’mores Cookie Bars

I assure you that any leftovers of these bars *will not* last long. But while they do, the best bet is to stash them away in an airtight container. You can layer parchment paper between the bars to keep them from sticking.

At room temperature I’d say these would be good for 5 days and then up to 8-9 days in the fridge. I like to enjoy these are room temperature, or do a quick heat up in the microwave!

Side angle shot of fresh baked s'mores bars. The marshmallows are toasty and the chocolate chips are melty overtop the soft cookie base.

For another cookie bar packed with chocolatey goodness, check out the latest Monster Cookie Bars. The soft yet chewy oat base is layered with melty chocolate chips and candies for chocolate in every bite. Plus they’re not only gluten free but vegan too so that everyone can enjoy!

If you try this recipe or any of the above ones, please let me know by leaving a comment and rating in the boxes below! I always love to hear from you, and it also helps other people find this recipe when they search online for the BEST S’mores Cookie Bars 🙂