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Close-up of fudgy s’more blondie squares topped with melted marshmallows and chopped walnuts.

Fudgy Rocky Road Blondies

Fudgy blondies inspired by a back-of-pack recipe, made with s’mores-flavored baking chips, mini marshmallows, and walnuts for a rich, texture-packed twist on classic rocky road.
Prep Time 15 minutes
Cook Time 35 minutes
15 minutes
Total Time 1 hour
Course Dessert
Servings 24

Ingredients
  

  • 1 cup unsalted butter 2 sticks
  • 2 cups granulated sugar
  • 4 large eggs
  • 2 cups all-purpose flour
  • 1 teaspoon salt
  • cups s’mores-flavored baking chips divided
  • 2 cups mini marshmallows divided
  • 1 cup chopped walnuts divided

Instructions
 

  • Preheat oven to 350°F. Line a 9 x 13 inch baking pan with parchment paper and set aside.
  • In a large microwave-safe bowl, melt the butter. Let cool slightly.
  • Whisk the sugar into the melted butter until smooth and glossy.
  • Whisk in the eggs, one at a time, until fully incorporated.
  • Add the flour and salt and stir just until combined. Do not overmix.
  • Fold in most of the s’mores baking chips, mini marshmallows, and walnuts, reserving a small handful of each for the top.
  • Spread the batter evenly into the prepared pan. Sprinkle the remaining chips, marshmallows, and walnuts over the surface and gently press them in.
  • Bake for 28–32 minutes, until the edges are set and a toothpick inserted in the center comes out with moist crumbs.
  • Cool completely in the pan before slicing. Chill briefly for cleaner cuts if desired.

Notes

  • Blondies will be very fudgy; avoid overbaking.
  • For extra gooey marshmallows, add a few on top immediately after baking.
  • Walnuts can be swapped for pecans or omitted entirely.
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