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Halloween Monster Brownies

Halloween Monster Brownies: Fudgy Fun for Spooky Celebrations

These Halloween Monster Brownies are a fun and fudgy treat perfect for spooky celebrations.
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Prep Time 20 minutes
Cook Time 30 minutes
Cooling Time 30 minutes
Total Time 1 hour 20 minutes
Servings: 12 squares
Course: Dessert
Cuisine: American
Calories: 250
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Brownie Base
  • 2 boxes Brownie Mix Key base for rich flavor
  • 1 cup Creamy Peanut Butter Can substitute with any nut butter
  • 1/2 cup Unsalted Butter Ensure it's at room temperature
  • 1/2 cup Light Brown Sugar Can substitute with dark brown sugar
  • 1 cup Granulated Sugar Use cane or caster sugar
  • 3 large Eggs For vegan option, try flax eggs
  • 1 teaspoon Pure Vanilla Extract Vanilla paste is a suitable substitute
  • 1 cup All-Purpose Flour For gluten-free, substitute with a 1:1 flour blend
  • 1 teaspoon Baking Soda Baking powder can be an alternative
  • 1 teaspoon Kosher Salt Sea salt can be used
  • 1 cup Quick Cooking Oats Rolled oats are an acceptable substitute
  • 1 cup Miniature Chocolate Chips Substitute with white chocolate chips for a twist
For the Decoration
  • 1 cup Halloween Sprinkles Use any seasonal sprinkles or edible glitter
  • 1 cup Candy Eye Decorations Use chocolate chips or mini marshmallows if unavailable
For the Frosting
  • 2 cups Confectioners Sugar Base for frosting
  • 1/2 cup Heavy Whipping Cream Can replace with half and half
  • 1 teaspoon Neon Green Gel Food Coloring Omit for a classic white frosting

Equipment

  • 9" x 13" baking pan
  • Stand Mixer
  • Spatula
  • Butter Knife

Method
 

Step-by-Step Instructions for Halloween Monster Brownies
  1. Prepare the Oven and Pan: Preheat your oven to 350°F (177°C) and prepare a 9" x 13" baking pan with nonstick spray and parchment paper.
  2. Mix the Brownie Base: Follow package instructions to create a rich batter with the brownie mix. Pour it into the prepared pan.
  3. Create the Peanut Butter Mixture: Combine creamy peanut butter and unsalted butter until fluffy. Add the sugars, eggs, and vanilla; mix until creamy.
  4. Combine Dry Ingredients: Whisk together flour, baking soda, salt, oats, and chocolate chips. Fold into the peanut butter mixture until just combined.
  5. Layer the Peanut Butter Mixture: Drop spoonfuls of the peanut butter mixture over the brownie batter and swirl gently. Sprinkle with Halloween decorations.
  6. Bake the Brownies: Bake for 25-30 minutes until a toothpick comes out with a few moist crumbs. Avoid overbaking.
  7. Cool the Brownies: Allow to cool in the pan for at least 30 minutes before lifting out using parchment overhang.
  8. Make the Frosting: Combine softened butter, confectioners’ sugar, vanilla, and cream. Beat until creamy; add food coloring if desired.
  9. Decorate the Brownies: Spread frosting over the cooled brownies and add extra decorations. Allow frosting to set before slicing.

Nutrition

Serving: 1squareCalories: 250kcalCarbohydrates: 33gProtein: 3gFat: 12gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 30mgSodium: 180mgPotassium: 150mgFiber: 2gSugar: 18gVitamin A: 200IUCalcium: 20mgIron: 1mg

Notes

Ensure softened butter is at room temperature for smooth texture; avoid overmixing for fudgy brownies.

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