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S'more Blondies

These ultimate S'more Blondies have a delicious graham cracker crust, brown butter-infused blondies, and a sinfully sweet topping of toasted marshmallows and melty milk chocolate chips!
Prep Time 1 hour 15 minutes
Cook Time 42 minutes
Cooling Time 1 hour
Total Time 2 hours 57 minutes
Course Dessert
Cuisine American
Servings 16 Pieces

Ingredients
  

Graham Cracker Crust:

  • 2 cups graham cracker crumbs (about 14 full crackers)
  • 3 Tablespoons brown sugar
  • ½ teaspoon cinnamon
  • ½ cup salted butter, melted

Blondie Batter:

  • 12 Tablespoons unsalted butter
  • 1 ½ cup packed brown sugar
  • 1 whole egg
  • 1 egg yolk
  • 2 teaspoons vanilla
  • 1 ½ cup all-purpose flour
  • ¾ teaspoon baking powder
  • ½ teaspoon salt
  • ¾ cup milk chocolate chips
  • 1 cup mini marshmallows

For Topping:

  • 2 cups mini marshmallows
  • ¼ cup milk chocolate chips
  • 3-4 mini Hershey bars, broken into segments

Instructions
 

Make the Crust:

  • Preheat oven to 350ºF, and line an 8-inch square pan with parchment paper, leaving extra overhang on the sides for easy removal.
  • Combine graham cracker crumbs, sugar, cinnamon and melted butter in a medium bowl. Press mixture into the bottom of the pan and bake for 10 minutes. Allow to cool completely.

Make the Dough:

  • In a medium saucepan, melt the butter over medium-low heat. As the butter melts, it’ll start to foam, then turn a clear golden color. Continue to stir the butter, scraping up any browned specks from the bottom of the pan as it starts to brown. It should have a nutty aroma. Once browned and nutty, turn off the heat and allow to cool for 5 minutes.
  • Whisk in the brown sugar, egg, and vanilla until smooth. Switch to a wooden spoon, add the flour, baking powder, and salt and stir until just combined. Halfway through mixing in the dry ingredients, add the chocolate chips and marshmallows, and continue mixing until just combined.
  • Turn batter out on top of graham cracker crust, spreading out evenly with a rubber spatula. Bake for about 28-32 minutes, or until edges are firm and golden and the center jiggles slightly; do not overbake. Blondies firm up as they cool.

To Finish:

  • Just before serving, preheat the broiler. Top the blondies with the mini marshmallows. Place under the broiler for 45-60 seconds, or until marshmallows are golden brown and puffy. Be sure to keep your eye on it the WHOLE time so that it doesn't burn. Mine took about 50 seconds.
  • Turn the oven off, take the blondies out and immediately top with the chocolate chips and Hershey bars. Return to the now OFF oven and allow the residual heat to slightly melt the chocolate for about 10-20 seconds. Remove from the oven and serve!