How to Make Homemade Marshmallow Brownies
Follow these simple steps at home to make your very own Marshmallow Brownies with mini marshmallows! Fudgy brownies made with cocoa powder are topped with a layer of mini marshmallows and then frosted with a decadent fudge icing. Such a fun twist on classic chocolate brownies! Yields 16 squares.
Ingredients
- 1/2 cup (113.5 g) butter
- 6 oz (170.1 g) semi sweet chocolate chips, about 1 heaping cup
- 1 cup (200 g) granulated sugar
- 3 (3) eggs, large
- 1 tsp (1 tsp) vanilla extract
- 1/2 cup (62.5 g) flour
- 1/4 cup (21.5 g) cocoa powder
- 1/2 tsp (0.5 tsp) salt
- 2 cups (100 g) mini marshmallows, or 10 oz bag
For Frosting:
- ¼ cup (56.75 g) unsalted butter, 56g
- ⅓ cup (28.67 g) cocoa, 35g
- 2 cups (240 g) confectioners sugar, 227g
- 3 tbsp (3 tbsp) milk
Instructions
- Preheat the oven to 350° F and line an 8×8 inch pan with parchment paper or spray with nonstick baking spray.
- In a microwave safe bowl combine the 1/2 cup butter and 6 oz chocolate. Microwave for 30 seconds at a time stirring in between until the chocolate is melted. About 90 seconds total. Let the chocolate cool for 2 minutes.
- In a medium bowl add the 1 cup sugar and 3 large eggs and whip on high speed using an electric mixer for 3 minutes. You can use a hand mixer or a stand mixer fitted with the whisk attachment.
- Add the chocolate and butter mixture into the eggs. Use a spatula for this. Add the 1 tsp vanilla extract and mix.
- Next add in the 1/2 cup flour, 1/4 cup cocoa powder, and 1/2 tsp kosher salt. Mix gently until combined.
- Pour the batter into the prepared pan and bake for 26-28 minutes.
- Remove the brownies from the oven and add 2 cups of mini marshmallows on top.
- Either return the brownies to the oven for 3 minutes (be careful not to burn the marshmallows!) or torch the marshmallows with a kitchen torch- my preferred way!
- Make the brownie frosting. In a large bowl melt the butter 30 seconds at a time in the microwave until fully melted.
- Add in the ⅓ cup cocoa powder and whisk until smooth.
- Add in the 2 cups of confectioners sugar and 3 tbsp milk.
- Immediately spread on top of the marshmallows and let set. The frosting will harden quickly so don’t wait to slather it on top!
Notes
If you don't have a kitchen torch, let the brownies bake in the oven for 3-5 minutes making sure they don't burn.
Serving: 1brownie, Calories: 300kcal, Carbohydrates: 43g, Protein: 3g, Fat: 14g, Saturated Fat: 8g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Trans Fat: 0.4g, Cholesterol: 55mg, Sodium: 139mg, Potassium: 132mg, Fiber: 2g, Sugar: 35g, Vitamin A: 320IU, Calcium: 22mg, Iron: 1mg
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