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Fudgy Hot Chocolate Brownies with Toasted Marshmallow Swirl

A single, rich slice of hot chocolate brownies topped with perfectly toasted mini marshmallows.

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You can create rich, fudgy brownies that taste like your favorite winter drink. This recipe uses simple steps to achieve a decadent chocolate base, a gooey marshmallow swirl, and a perfectly toasted topping. It is a simple, comforting dessert for any cold night.

Ingredients

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  • 1 box standard brownie mix (plus ingredients listed on box)
  • 1/2 cup hot chocolate mix powder (not the beverage mix)
  • 1/2 cup boiling water
  • 1 cup mini marshmallows
  • 1/4 cup marshmallow fluff or marshmallow creme
  • 1 tablespoon milk (for drizzling, optional)

Instructions

  1. Preheat your oven to the temperature specified on the brownie mix box. Grease and line an 8×8 inch baking pan with parchment paper, leaving an overhang for easy removal.
  2. Prepare the brownie batter according to the box directions, but substitute the required liquid with the 1/2 cup of hot chocolate mix powder dissolved in 1/2 cup of boiling water. Mix until just combined.
  3. Pour half of the chocolate batter into the prepared pan.
  4. In a small bowl, stir the marshmallow fluff or creme until it is slightly smoother. Drop small spoonfuls of the marshmallow fluff evenly over the batter layer.
  5. Gently pour the remaining brownie batter over the marshmallow layer.
  6. Take the 1 cup of mini marshmallows and sprinkle them evenly over the top of the batter.
  7. Bake for the time recommended on the box for fudgy brownies, or until a toothpick inserted near the center comes out with moist crumbs attached.
  8. Remove the pan from the oven. If you want a toasted effect, place the pan under the broiler for 30 to 60 seconds, watching constantly until the marshmallows puff and lightly brown.
  9. Let the brownies cool completely in the pan before lifting them out using the parchment overhang. Cut into squares. Drizzle with a little milk before serving if desired.

Notes

  • Using a high-quality hot chocolate mix powder will deepen the cocoa flavor in your brownies.
  • For the fudgiest texture, slightly underbake these brownies according to the toothpick test.
  • If you do not have marshmallow fluff, you can skip it and simply use more mini marshmallows on top.

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