Go Back
+ servings
blondies topped with chocolate and toasted marshmallows

S'mores Blondies

The best basic blondie recipe is topped with chocolate spread (Nutella) and toasted mini marshmallows for an ooey gooey indoor s'more!
Servings 24 bars
Author Dorothy Kern


  • 1/2 cup unsalted butter
  • 2 cups brown sugar packed
  • 2 eggs
  • 1 tablespoon vanilla extract
  • 1/2 teaspoon salt
  • 1 teaspoon baking powder
  • 2 cups all purpose flour
  • 1 cup Nutella or other chocolate spread
  • 4-5 cups mini marshmallows


  • Preheat oven to 350°F. Line a 9x13” pan with foil and spray well with cooking spray.
  • Mix butter and brown sugar with a stand or a hand mixer until crumbly. Mix in eggs and vanilla until smooth. Mix in salt, baking powder, then flour. The mixture will be wet.
  • Spread in prepared pan. The mixture is wet so it’s best to spray your hands with cooking spray and then smooth the dough with your hands to get an even layer.
  • Bake for about 22-25 minutes until they start to turn golden. Err on the side of under baked with these - they’ll finish baking as the cool and you don’t want them over baked. Cool completely before continuing.
  • Frost with chocolate spread and top with marshmallows. Broil on high for about 1-2 minutes, watching them closely to make sure the marshmallows don’t burn. Once you add the marshmallows, these are best eaten the same day.