S’mores are the undisputed champion of nostalgia. The combination of fire-toasted marshmallow, melty chocolate, and crisp graham crackers instantly transports you to summer nights around a campfire. But let’s be honest: they are messy, weather-dependent, and hard to serve to a crowd.
Enter the S’mores Blondie—a rich, chewy brown sugar bar that packs every element of the traditional campfire treat into a sliceable, portable dessert. By incorporating crushed graham crackers directly into the batter and layering gooey marshmallows with milk chocolate, you get the perfect balance of caramelized butterscotch, crunch, and melt.
The Secret to a Superior S’mores Blondie
Most recipes treat s’mores as an afterthought by simply throwing chocolate chips and mini marshmallows on top of a standard blondie base. To create a truly elevated slice, three key technique shifts make all the difference:
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Graham Cracker “Flour” Swap: Replacing a portion of the all-purpose flour with finely ground graham cracker crumbs embeds that unmistakable toasted honey-wheat flavor throughout the entire bar.
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Brown Butter Base: Browned butter adds a deep, nutty, toffee-like flavor note that echoes the smoky taste of a campfire.
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Layered Topping Technique: Adding half the marshmallows and chocolate into the batter—and scattering the rest on top during the final minutes of baking—ensures gooey pockets inside and golden, toasted, camp-worthy tops.
The Recipe: Ultimate S’mores Blondies
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Prep Time: 15 minutes
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Bake Time: 25–30 minutes
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Yields: 16 squares
Ingredients
The Base:
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() unsalted butter
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light or dark brown sugar, packed
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, room temperature
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pure vanilla extract
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all-purpose flour
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finely ground graham cracker crumbs
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baking powder
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fine sea salt
The S’mores Mix-Ins & Toppings:
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coarsely broken graham cracker pieces (for crunch)
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mini marshmallows (divided)
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milk chocolate or dark chocolate, coarsely chopped or broken into bars (divided)
Step-by-Step Instructions:
