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swirled marshmallow brownies. top down, close up view of brownies cut into 9 squares.
Heather Wolf

Marshmallow Brownies

5 from 1 vote
With gooey tops and fudgy centers, these bakery-style Marshmallow Brownies melt in your mouth with every bite. Featuring rich, cocoa powder brownies swirled with fluffy marshmallow creme, this quick and delicious treat takes only 15 minutes to prep.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 9
Course: Brownies and Blondies
Cuisine: American
Ingredients Equipment Method

Ingredients
  

Brownies
  • 1/2 cup unsalted butter melted and cooled
  • 1 cup granulated sugar
  • 2 tsp vanilla extract pure
  • 2 large eggs room temperature
  • 1/2 cup unsweetened cocoa powder 100% cacao
  • 1/2 cup all-purpose flour unbleached
  • 1/4 tsp sea salt fine
  • 3/4 cup marshmallow creme

Equipment

  • 8x8 metal baking pan

Method
 

Brownies
  1. Preheat oven to 350 degrees. Grease an 8 x 8 metal baking pan then line with parchment paper. Set aside.
  2. In a large bowl, whisk together butter and sugar until combined.
  3. Add vanilla and eggs. Whisk vigorously until smooth and glossy.
  4. In a separate bowl, sift together cocoa powder, flour and salt.
  5. Add dry ingredients to wet then stir with a spoon until just combined.
    Note: Batter will be thick.
  6. Spoon brownie batter into baking pan then smooth and level the top with a spatula.
  7. Place marshmallow creme in a small heat-safe bowl then microwave for 5 - 10 seconds or until creme softens enough to swirl. Avoid melting the marshmallow creme.
  8. Using a spoon, drop large dollops of marshmallow creme onto brownie batter in random placements.
  9. With the tip of a knife, gently swirl marshmallow creme into brownie batter.
  10. Bake for 20 - 25 minutes or until a tester inserted into the center comes out with a few moist crumbs. Do not overbake or brownies will be dry.
  11. Place brownie pan on a baking rack to cool to room temperature, approximately 1 hour, before slicing.
  12. Store brownies in an airtight container at room temperature up to 3 days.