What’s the secret to super fudgy brownies?

In my kitchen, the secret is more fat and less flour, plus a touch underbaking. I use melted butter and avoid overmixing to keep the crumb dense and moist. Monster Mash Brownies benefit from this approach, giving you that lush fudgy bite with a glossy crust.

How long does Monster Mash last in the fridge?

When stored in an airtight container, Monster Mash Brownies stay fresh for about a week in the fridge. For longer storage, freeze for 2–3 months and thaw at room temperature or in the fridge before serving.

What are mud brownies?

Mud brownies describe a very dense, fudgy style. Monster Mash Brownies lean into that texture, with gooey marshmallows and fun decorations for a spooky twist.

Why do they call them cosmic brownies?

Cosmic brownies started as chewy, chocolatey treats with colorful toppings. The name stuck for similar kid-friendly brownies. Monster Mash Brownies are part of that playful family, adding Halloween flair.

Monster Mash Brownies:3 Irresistible fudgy spooky treats.

Description

Monster Mash Brownies: A spooky, fudgy Halloween dessert loaded with gooey marshmallows, spooky candy eyes, and monster-colored candies.

Ingredients

Scale

1/2 cup unsalted butter, melted
1 cup granulated sugar
2 large eggs
1 tsp vanilla extract
1/3 cup unsweetened cocoa powder
1/2 cup all-purpose flour
1/4 tsp baking powder
1/4 tsp salt
1/2 cup mini marshmallows
1/4 cup green or purple candy-coated chocolates (like M&M’s)
1/4 cup chopped halal gummy worms or halal chewy candy
Candy eyes, for decorating

Instructions

Preheat oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
In a large bowl, whisk together melted butter and sugar until smooth.
Add eggs and vanilla extract; beat until well combined.
Stir in cocoa powder, flour, baking powder, and salt just until mixed.
Gently fold in marshmallows, candy-coated chocolates, and chopped halal gummies.
Pour batter into prepared pan and spread evenly.
Press candy eyes randomly on top.
Bake for 25–30 minutes, until a toothpick inserted comes out with a few moist crumbs.
Cool completely before slicing into spooky squares.

Notes

Store leftovers in an airtight container at room temperature for up to 4 days. For longer storage, refrigerate for up to 1 week or freeze for 2–3 months.
To customize colors, use green or purple candies for a more Halloween vibe.
For a dairy-free version, substitute melted coconut oil or dairy-free butter; the texture remains fudgy, though flavor may vary slightly.
Mud brownies are a term sometimes used synonymously with fudgy brownies; these Monster Mash Brownies lean toward a dense, fudgy texture.

Prep Time: 10 minutes
Cook Time: 30 minutes
Category: Dessert
Method: Bake
Cuisine: American

Nutrition

Serving Size: 1 brownie
Calories: 270
Sugar: 28 g
Sodium: 140 mg
Fat: 16 g
Saturated Fat: 9 g
Unsaturated Fat: 5 g
Trans Fat: 0 g
Carbohydrates: 32 g
Fiber: 2 g
Protein: 4 g
Cholesterol: 60 mg

Keywords: Monster Mash Brownies, fudgy brownies, Halloween brownies, spooky brownies, marshmallow brownies, candy eyes