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Gooey Fudgy Hot Chocolate Brownies with Toasted Marshmallow Swirl

Close-up of a fudgy hot chocolate brownie topped with a thick layer of toasted, golden-brown marshmallow.
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Make these rich, fudgy hot chocolate brownies that taste just like a mug of hot cocoa. This simple recipe features a marshmallow swirl and a toasted marshmallow topping for the ultimate cozy winter dessert.

Ingredients

Scale
  • 1 box (18.3 oz) brownie mix (plus ingredients listed on box)
  • 1/2 cup hot cocoa mix (standard preparation type)
  • 1/2 cup marshmallow fluff or marshmallow creme
  • 1 cup mini marshmallows
  • 1 tablespoon milk (for drizzling, optional)

Instructions

  1. Preheat your oven according to the brownie mix box directions. 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 instructions, but substitute the required water or milk with the 1/2 cup of hot cocoa mix. Mix until just combined. Do not overmix.
  3. Pour half of the brownie batter into the prepared pan and spread evenly.
  4. Dollop spoonfuls of the marshmallow fluff evenly over the batter layer.
  5. Gently spread the remaining brownie batter over the marshmallow layer.
  6. Using a knife or skewer, gently swirl the marshmallow fluff into the batter to create a marbled effect.
  7. Bake for the time specified on the brownie mix box, or until a toothpick inserted near the center comes out with moist crumbs attached, indicating a fudgy texture.
  8. Remove the pan from the oven. Immediately sprinkle the mini marshmallows evenly over the hot brownie surface.
  9. Return the pan to the oven for 1 to 2 minutes, watching closely, until the marshmallows are puffed and lightly toasted.
  10. Remove from the oven and let the brownies cool completely in the pan on a wire rack. This step is key for fudgy texture.
  11. Once cool, lift the brownies out using the parchment paper overhang. Cut into squares. Drizzle with a little milk if desired before serving.

Notes

  • For the fudgiest results, slightly reduce the baking time called for on the box. You want moist crumbs, not a dry toothpick.
  • If you do not have marshmallow fluff, you can use a simple marshmallow frosting recipe instead.
  • Toasting the marshmallows under the broiler is an alternative to the oven method, but watch them constantly as they burn quickly.

Nutrition

Find it online: https://tastethisplate.com/fudgy-hot-chocolate-brownies-marshmallow-swirl/