S’mores Cookie Bars

Why You’ll Love S’mores Cookie Bars Recipe

These cookie bars are rich, chewy, and packed with chocolate flavor.

The creamy chocolate cremeux filling makes them extra indulgent.

Mini marshmallows create the classic gooey s’mores texture everyone loves.

They’re easier to make than traditional s’mores and perfect for sharing.

The bars can be made ahead and chilled for clean slices and better texture.

They taste amazing warm or cold straight from the fridge.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the chocolate cremeux filling:

1 cup milk

2 egg yolks

2 tablespoons granulated white sugar

150 g dark chocolate, finely chopped

1 teaspoon vanilla extract

For the cookie dough:

142 g unsalted butter, melted

100 g light brown sugar

100 g granulated white sugar

1 large egg

1 teaspoon vanilla extract

295 g plain flour

2 teaspoons baking powder

Pinch of salt

200 g mini marshmallows

65 g milk chocolate chips

Directions

Preheat the oven to 180°C (160°C fan forced) or 350°F. Line a 9-inch square baking pan with baking paper.

To make the chocolate cremeux filling, add the milk, egg yolks, and sugar to a medium saucepan. Whisk until combined.

Cook over low-medium heat, stirring constantly, until the mixture thickens slightly and reaches the consistency of thin pouring cream. If using a thermometer, heat to 82°C/180°F.

Place the chopped dark chocolate in a large bowl and set a strainer over the top. Pour the custard mixture through the strainer onto the chocolate.

Add the vanilla extract and stir until smooth and glossy. Blend briefly with an immersion blender or handheld mixer for an extra silky texture.

Transfer the cremeux to the refrigerator to chill while preparing the cookie dough.

In a large mixing bowl, combine the melted butter, brown sugar, and granulated sugar. Beat with a handheld mixer for about 2 minutes until smooth and fully combined.

Add the egg and vanilla extract and mix until just incorporated.

Add the flour, baking powder, and salt. Mix on low speed until a soft dough forms.

Scatter two-thirds of the cookie dough into the prepared pan in small clumps, then press it evenly across the bottom of the pan.

Bake the base for 15 minutes.

Pour the chilled chocolate cremeux over the baked cookie layer.

Reserve a handful of marshmallows, then scatter the remaining marshmallows evenly over the chocolate layer.

Drop the remaining cookie dough over the top in small clumps.

Sprinkle the reserved marshmallows and chocolate chips over the surface.

Bake for another 20 minutes until golden around the edges.

Allow the bars to cool at room temperature, then refrigerate for at least 2 hours to fully set.

For extra toasted marshmallows, lightly torch the marshmallows on top before slicing and serving.

Servings and timing

Servings: 16 bars

Prep time: 25 minutes

Cook time: 35 minutes

Chilling time: 2 hours

Total time: Approximately 3 hours

Variations

Use milk chocolate instead of dark chocolate for a sweeter filling.

Add crushed graham crackers between the cookie base and chocolate layer for a more traditional s’mores flavor.

Mix peanut butter chips into the cookie dough for a nutty twist.

Use large marshmallows cut into smaller pieces if mini marshmallows are unavailable.

Add a sprinkle of flaky sea salt on top for a sweet-and-salty contrast.

Swap the chocolate chips for caramel chips or white chocolate chips.

Storage/Reheating

Store the cookie bars in an airtight container in the refrigerator for up to 5 days.

For the best texture, allow the bars to sit at room temperature for about 10 minutes before serving.

You can also freeze the bars for up to 2 months. Wrap them tightly in plastic wrap and store in a freezer-safe container.

To reheat, warm individual bars in the microwave for 10 to 15 seconds for gooey marshmallows and melted chocolate.

FAQs

Can I make these bars ahead of time?

Yes, these bars are perfect for making ahead since they need time to chill and set properly.

What is chocolate cremeux?

Chocolate cremeux is a rich and creamy custard-based chocolate filling with a silky texture.

Can I use store-bought cookie dough?

Yes, but homemade dough gives the best texture and flavor.

Why do the bars need refrigeration?

Chilling helps the chocolate cremeux set so the bars slice neatly.

Can I use dark chocolate chips instead of chopped chocolate?

Yes, chocolate chips can be substituted, although chopped chocolate melts more smoothly.

How do I know when the bars are done baking?

The edges should look golden brown while the center remains slightly soft.

Can I make these without marshmallows?

Yes, but the marshmallows give the dessert its classic s’mores flavor and texture.

Do I need a kitchen torch?

No, the torch is optional and only adds extra toasted marshmallow flavor on top.

Can I use gluten-free flour?

Yes, a good-quality gluten-free all-purpose flour blend should work well.

Are these bars very sweet?

They are rich and sweet, but the dark chocolate helps balance the sweetness.

Conclusion

S’mores Cookie Bars are the ultimate layered dessert for chocolate and marshmallow lovers. With a buttery cookie crust, creamy chocolate filling, gooey marshmallows, and melty chocolate chips, every bite tastes like an upgraded version of classic campfire s’mores. Perfect for gatherings or cozy nights at home, these bars are guaranteed to disappear quickly.

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