Irresistible S’mores Cookie Bars : The Best Dessert for Game Night or Anytime

Posted on July 11, 2025 ·

By Lyndy

there are two pictures of cookies and one has marshmallows on it with the words s'mores cookie bars

Craving a gooey, chocolatey, nostalgic treat that’s easy to whip up and perfect for sharing? Look no further than these s’mores cookie bars — a chewy cookie base layered with melted chocolate, marshmallow fluff, and a golden graham cracker topping. They’re everything you love about traditional campfire s’mores, but in a neat, portable bar form.

These bars are one of the best desserts with simple ingredients you can bake for a crowd. Whether you call them cookie s’mores bars, everything bars desserts, or simply the best s’mores bars you’ve ever had, they’re guaranteed to become a favorite in your kitchen.

Perfect for date nights, desserts to make with your boyfriend, dessert for game night, or even as treats to send in the mail, these bars are easy to make and impossible to resist.

S’mores cookie bars combine the best of two worlds — soft and chewy cookie texture with the classic flavor of graham crackers, melted chocolate, and gooey marshmallow.

Here’s why they’re a must-bake:

  • They use simple pantry ingredients, so you can make them anytime.
  • They’re easy to slice and pack — ideal for treats to send in the mail.
  • No campfire required!
  • They make a fun, memorable dessert for game night or family get-togethers.
  • You can customize them with add-ins like nuts or peanut butter.

If you love chocolate dipped s’mores or traditional everything bar desserts, you’ll adore this unique twist.

This recipe is perfect for:

Kitchen Tools You’ll Need for the Best S’mores Bars

Before you start, gather these essentials:

  • 9×13-inch baking pan
  • Parchment paper
  • Mixing bowls
  • Electric mixer (or whisk)
  • Measuring cups and spoons
  • Spatula
  • Sharp knife for cutting bars

Ingredients: Desserts With Simple Ingredients Anyone Can Make

For about 24 bars:

  • 2 ½ cups all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup unsalted butter, softened
  • 1 cup brown sugar
  • ½ cup granulated sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1 ½ cups graham cracker crumbs
  • 2 cups milk chocolate chips (or chopped chocolate bars)
  • 7 oz jar marshmallow fluff
  • Optional: extra graham cracker pieces for garnish

Preheat your oven to 350°F (175°C). Line your baking pan with parchment paper. In a medium bowl, whisk flour, baking soda, and salt.

In a large bowl, cream butter with both sugars until light and fluffy. Beat in eggs and vanilla. Gradually mix in the dry ingredients, then stir in graham cracker crumbs.

Press about two-thirds of the dough into the bottom of your prepared pan.

Step 2: Layer the S’mores Filling

Sprinkle chocolate chips evenly over the dough. Next, gently spread marshmallow fluff over the chocolate. Dollop the remaining dough over the marshmallow layer, leaving some marshmallow peeking through for a classic s’mores look.

Bake for 25–30 minutes, or until the top is golden brown. Cool completely in the pan before cutting into squares or rectangles.

Serving Ideas: Desserts to Make With Boyfriend or Family

These bars make the perfect cozy night-in dessert. Cut them into smaller squares and serve warm with a scoop of vanilla ice cream for an indulgent treat.

Or pack them up and surprise your loved one with a sweet gesture — they’re one of the easiest and most romantic desserts to make with boyfriend.

For a fun twist, drizzle with extra melted chocolate, or try pairing them with hot cocoa for a dessert for game night everyone will love.

Creative Variations: Everything Bars Desserts and Chocolate Dipped S’mores Ideas

These everything bars desserts can be customized in countless ways:

  • Use dark or white chocolate instead of milk chocolate.
  • Add chopped nuts or crushed pretzels for crunch.
  • Swirl in peanut butter with the marshmallow layer.
  • After baking and cooling, dip each bar halfway into melted chocolate for an elegant chocolate dipped s’mores effect.
  • Overbaking: Take them out when golden — they’ll set as they cool.
  • Using regular marshmallows: Fluff spreads more evenly.
  • Not letting them cool fully before cutting: They may fall apart if too warm.
  • Skipping parchment paper: Makes removal and cleanup so much easier.

How to Store and Ship These Treats to Send in the Mail

Store in an airtight container at room temperature for up to 5 days. For longer storage, refrigerate for up to a week.

To mail: wrap each bar in parchment, then plastic wrap. Pack snugly in a sturdy tin or box lined with bubble wrap or tissue paper — a thoughtful homemade treat to send in the mail.

For the perfect dessert spread, serve these bars alongside:

Tips for Success: Mastering the Best S’mores Bars Every Time

  • Use room-temperature butter for the best cookie texture.
  • Don’t skip the graham crumbs — they bring the signature flavor.
  • Use a serrated knife to cut neat squares.
  • Store extras in the fridge if your kitchen is warm.

Can I use marshmallows instead of fluff? Yes, but cut into small pieces and watch carefully to prevent burning.
Can I freeze these bars? Absolutely — freeze in an airtight container for up to 2 months.
Can I double the recipe? Yes — just use two pans or one large sheet pan.
Can I make them gluten-free? Use gluten-free graham crackers and flour substitute.

These s’mores cookie bars are gooey, chocolatey, and guaranteed to delight everyone who tries them. They’re perfect for any occasion — from cozy nights in to gifting as treats to send in the mail.

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Irresistible S’mores Cookie Bars : The Best Dessert for Game Night or Anytime


  • Author: Lyndy
  • Total Time: 45 minutes
  • Yield: 24 bars 1x
  • Diet: Vegetarian

Description

These irresistible S’mores Cookie Bars bring together all the best parts of a classic campfire s’more — graham crackers, melted chocolate, and toasted marshmallows — baked into gooey, chewy bars perfect for any occasion.


Ingredients

Scale

1 cup (226g) unsalted butter, softened 1 cup (200g) packed brown sugar 1/2 cup (100g) granulated sugar 2 large eggs 2 teaspoons vanilla extract 2 1/2 cups (300g) all-purpose flour 1 teaspoon baking soda 1/2 teaspoon salt 1 1/2 cups (150g) graham cracker crumbs 1 1/2 cups (270g) semi-sweet chocolate chips or chopped chocolate 2 cups (100g) mini marshmallows


Instructions

1. Preheat oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper and lightly grease. 2. In a large bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy. Beat in eggs one at a time, then mix in vanilla. 3. In another bowl, whisk together flour, baking soda, salt, and graham cracker crumbs. Gradually add to wet ingredients and mix until combined. 4. Press two-thirds of the dough evenly into prepared pan. Sprinkle chocolate chips over dough, then top with marshmallows. Crumble remaining dough over top, leaving some marshmallow and chocolate exposed. 5. Bake 25–30 minutes, until edges are golden and center is just set. Cool completely before slicing into bars.

Notes

• Don’t overbake — the center should remain soft and gooey. • Let bars cool fully before slicing to help them hold shape. • Toast marshmallows briefly under broiler for extra golden tops if desired. • Store bars in an airtight container for up to 3 days or freeze for longer storage.

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dessert, Bars
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 bar
  • Calories: 220
  • Sugar: 16g
  • Sodium: 90mg
  • Fat: 11g
  • Saturated Fat: 6g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 29g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 25mg

Keywords: s’mores cookie bars, cookie smores recipe, everything bars desserts, desserts to make with your boyfriend, simple ingredients desserts

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