Description
Marshmallow Peanut Butter Brownies bring pure chocolate and nutty comfort straight to your dessert plate. Gooey marshmallow swirls melt perfectly into rich chocolate, creating a treat that disappears faster than you can slice them.
Ingredients
Scale
Main Ingredients:
- 1 cup unsalted butter
- 4 large eggs
- 1 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 cup creamy peanut butter
Supporting Ingredients:
- 1 ½ cups granulated sugar
- 1 cup packed brown sugar
- 1 teaspoon vanilla extract
Finishing Ingredients:
- ½ teaspoon baking powder
- ½ teaspoon salt
- 2 cups mini marshmallows
Instructions
- Melt 1 cup unsalted butter in a large bowl. Mix in 1 ½ cups granulated sugar, 1 cup brown sugar, 4 large eggs, and 1 teaspoon vanilla extract until the mixture becomes silky smooth.
- Sift 1 cup all-purpose flour, 1 cup unsweetened cocoa powder, ½ teaspoon baking powder, and ½ teaspoon salt into a separate bowl. Gently incorporate these dry ingredients into your wet mixture, stirring until completely blended.
- Fold 1 cup creamy peanut butter into the chocolate batter, ensuring it’s thoroughly mixed and creates a marbled appearance.
- Grease a 9×13 inch baking pan. Transfer the batter into the pan, using a spatula to spread it evenly across the surface.
- Sprinkle 2 cups mini marshmallows across the top of the batter, distributing them uniformly.
- Position the pan in a preheated oven at 350°F. Bake for 25-30 minutes, checking doneness by inserting a toothpick near the center – it should come out with just a few moist crumbs.
- Remove from the oven and let the brownies rest for 10 minutes. Cut into square portions while the dessert is still warm for clean, neat slices.
Notes
- Adjust marshmallow placement for even coverage, gently pressing them slightly into the batter so they melt beautifully during baking.
- Use room temperature eggs for smoother batter and more consistent brownie texture that blends ingredients perfectly.
- Select a natural, creamy peanut butter without added sugar to control overall sweetness and maintain rich chocolate flavor.
- Check brownies early at 22-25 minutes to prevent overcooking, as they continue setting while cooling and can become dry if baked too long.
- Prep Time: 15 minutes
- Cook Time: 25-30 minutes
- Category: Brownies
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 12
- Calories: 313 kcal
- Sugar: 26 g
- Sodium: 167 mg
- Fat: 21 g
- Saturated Fat: 7 g
- Unsaturated Fat: 13 g
- Trans Fat: 0.3 g
- Carbohydrates: 29 g
- Fiber: 3 g
- Protein: 6 g
- Cholesterol: 55 mg