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As I pulled the warm, gooey Monster Cookie Fudgy Brownies from the oven, a wave of nostalgia hit me—memories of family gatherings and the sweet chaos of kids running around, all drawn in by the aroma of freshly baked treats. This delightful recipe marries the irresistible richness of fudgy brownies with the playful, chewy texture of monster cookies, creating a dessert that is not only a visual masterpiece but a flavor explosion with every bite. With a quick prep time and a guaranteed crowd-pleaser status, these brownies will make you the hero of your next family feast. Ready to whip up a batch that combines chocolate chips, peanut butter, and colorful mini M&Ms? Let’s dive into this layered delight!

Why Are These Brownies So Irresistible?

Decadent Layers: The rich fudgy base meets chewy cookie perfection, showcasing a mouthwatering contrast that chocolate lovers crave.
Family-Friendly Fun: Kids will love the colorful mini M&Ms, making these brownies a hit during family gatherings or school events.
Quick and Easy: This recipe combines simple ingredients and straightforward steps, ensuring you can whip up a batch in no time. Don’t forget, if you’re looking for even more quick treats, try my delightful Blueberry Breakfast Cookies!
Versatile Variations: Want to switch things up? Experiment with cookie butter or gluten-free flour to suit different tastes and dietary needs.
Nostalgic Appeal: A delightful blend of childhood favorites, each bite will take you back to those simple, joyful moments filled with homemade goodness.

Monster Cookie Fudgy Brownies Ingredients

For the Brownie Layer

  • White Granulated Sugar – Enhances sweetness; consider using brown sugar for a deeper flavor.
  • Large Eggs (2) & Egg Yolk (1) – Provide structure and moisture; using room temperature eggs will help them mix better.
  • Unsalted Butter (5 tbsp) – Adds richness; can substitute with coconut oil for a dairy-free option.
  • Canola or Vegetable Oil (1/3 cup) – Adds moisture and tenderness; olive oil may change the flavor slightly.
  • Pure Vanilla Extract (2 tsp) – Enhances overall flavor; ensure it’s pure for the best results.
  • All-Purpose Flour (1/2 cup brownie) – Provides structure; remember to spoon and level to avoid dryness.
  • Unsweetened Cocoa Powder (3/4 cup) – Boosts chocolate flavor; Dutch process cocoa offers a richer taste.
  • Cornstarch (1 tbsp + 1 tsp) – Tenderizes texture; can swap for arrowroot powder if needed.
  • Salt (1/4 tsp brownie) – Balances the sweetness.
  • Semi-Sweet & Milk Chocolate Chips (1/2 cup each) – Adds richness; using dark chocolate chips can reduce sweetness.

For the Monster Cookie Layer

  • All-Purpose Flour (1/2 cup) – Provides structure; the same leveling note applies here.
  • Cornstarch (1 tsp) – Helps tenderize the cookies.
  • Baking Soda (1/2 tsp) – Acts as a leavening agent for a chewy texture.
  • Baking Powder (1/8 tsp) – Adds fluffiness; a little goes a long way!
  • Salt (1/4 tsp) – Enhances flavor.
  • Unsalted Butter (1/4 cup) – Balances flavors and adds moisture.
  • Brown Sugar (1/3 cup) – Increases softness and adds depth to sweetness.
  • White Granulated Sugar (1/8 cup) – Provides an extra boost of sweetness.
  • Creamy Peanut Butter (1/4 cup) – Contributes flavor and chewiness; swap with sunbutter for nut-free.
  • Large Egg (1) – Binds all ingredients together.
  • Quick Oats (1/2 cup) – Adds nice texture; old-fashioned oats could yield a chewier result.
  • Mini Chocolate Chips & Mini M&Ms (1/2 cup each) – Offer bursts of chocolate and vibrant color; a delicious topping that enhances the fun!

Let’s get ready to mix these layers to make your Monster Cookie Fudgy Brownies a memorable treat!

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Step‑by‑Step Instructions for Monster Cookie Fudgy Brownies

Step 1: Prepare Monster Cookie Dough
In a medium bowl, combine the flour, cornstarch, baking soda, baking powder, and salt to create a dry mixture. In a larger bowl, cream together the unsalted butter, brown sugar, white sugar, and creamy peanut butter until fluffy and light. Add the vanilla extract and egg, mixing until well combined, then gradually incorporate the dry mixture. Stir in the oats, mini chocolate chips, and mini M&Ms, then chill the dough in the refrigerator for 40 minutes.

Step 2: Make Brownies
Preheat your oven to 325°F (163°C) and line a 9×9 inch baking pan with parchment paper, lightly greasing the sides. In a medium bowl, whisk together the flour, cocoa powder, cornstarch, and salt. In a mixer, beat together the sugars and eggs for about 5 minutes until fluffy and pale. Mix in the melted unsalted butter, oil, and vanilla, then fold in the dry ingredients. Pour the brownie batter into the prepared pan and spread it evenly before baking for 15 minutes to set slightly.

Step 3: Assemble and Bake
Once the brownie base has set, flatten the chilled monster cookie dough into discs and evenly layer it over the partially baked brownies. Gently press the cookie dough down to ensure it adheres to the brownie layer. Bake the assembled dessert for an additional 20-30 minutes, or until the top no longer jiggles and is a light golden brown. Allow the pan to cool completely before proceeding to slice into decadent squares.

How to Store and Freeze Monster Cookie Fudgy Brownies

Room Temperature: Keep the brownies in an airtight container at room temperature for up to 5 days to maintain their soft, fudgy texture.

Fridge: For longer storage, place the brownies in the fridge, where they can last up to 1 week. Be sure to let them come to room temperature for the best texture before serving.

Freezer: Freeze the brownies by wrapping them tightly in plastic wrap and then placing them in a freezer-safe bag. They will stay fresh for up to 3 months. Thaw in the fridge or at room temperature before enjoying.

Reheating: If you prefer them warm, simply reheat in the microwave for a few seconds. Enjoy your delicious Monster Cookie Fudgy Brownies!

Make Ahead Options

These Monster Cookie Fudgy Brownies are perfect for those busy days when time is tight but you still want to indulge in something homemade! You can prepare the brownie base and chill it in the fridge up to 3 days in advance, then simply bake the brownies before adding the monster cookie layer. Similarly, you can also make the monster cookie dough and refrigerate it overnight; this will allow the flavors to meld beautifully. When you’re ready to assemble, just spread the chilled cookie dough over the partially baked brownie layer, and finish baking. These tips ensure your brownies remain just as delicious while saving you precious time!

Expert Tips for Monster Cookie Fudgy Brownies

  • Chill the Dough: Ensure to chill the monster cookie dough for 40 minutes; this helps maintain its shape and prevents spreading too much during baking.

  • Avoid Overmixing: Mix the brownie batter just until combined to keep them rich and fudgy. Overmixing can lead to tougher brownies.

  • Check Your Oven: Double-check your oven temperature with an oven thermometer; uncertainties in temperature can lead to uneven baking of those delicious Monster Cookie Fudgy Brownies.

  • Cooling Time: Resist the temptation to cut into the brownies immediately. Allow them to cool completely to enhance their fudginess and flavor.

  • Use Quality Chocolate: Opt for high-quality chocolate chips or cocoa powder; the better the ingredients, the more delightful the flavor in every bite.

Monster Cookie Fudgy Brownies Variations

Feel free to explore creative twists to make these brownies uniquely yours!

  • Nut-Free: Swap creamy peanut butter with sunbutter for a delicious, nut-free alternative. Enjoy the same texture without the nuts.

  • Gluten-Free: Use certified gluten-free flour blends to make your brownies gluten-free. Your friends with dietary restrictions will thank you!

  • Flavor Boost: Add a pinch of espresso powder to the brownie batter for an enhanced chocolate flavor. This little addition can elevate the taste to gourmet levels.

  • Chewy Perfection: Substitute quick oats with old-fashioned oats for a heartier, chewier cookie layer. The texture difference will enchant your family.

  • Candy Variations: Instead of mini M&Ms, try using other colorful candies like Reese’s Pieces or Skittles. Each bite becomes a flavor surprise!

  • Fruity Twist: Toss in some dried fruit like cherries or cranberries for a fruity flavor burst. This adds a touch of tartness to balance the sweetness.

  • S’mores Inspired: Layer mini marshmallows and crushed graham crackers on top of the brownie layer before adding cookie dough. The result will be a delightful s’mores experience!

  • Ice Cream Delight: Serve these brownies warm with a scoop of vanilla ice cream on top and a drizzle of chocolate sauce for an indulgent treat. It enhances the overall experience wonderfully!

If you’re looking for even more delicious desserts, don’t forget to check out my delightful Blueberry Breakfast Cookies for a quick and tasty treat!

What to Serve with Monster Cookie Fudgy Brownies

Indulging in these rich brownies is great, but pairing them with delightful accompaniments takes your dessert game to a whole new level.

  • Vanilla Ice Cream: The creamy texture balances the fudgy brownies perfectly. A scoop of ice cream on warm brownies creates a delightful contrast.

  • Chocolate Sauce: Drizzle warm chocolate sauce over your brownies for an extra layer of decadence. The rich flavor enhances the chocolatey goodness and adds a touch of indulgence.

  • Whipped Cream: Light and fluffy whipped cream adds an airy texture that complements the dense brownies. Top with chocolate shavings for a classy presentation!

  • Fresh Berries: Juicy raspberries or strawberries provide a refreshing burst of flavor. Their tartness cuts through the sweetness and elevates each bite.

  • Peanut Butter Drizzle: For peanut butter lovers, a warm drizzle of peanut butter adds a rich, nutty flavor that’s irresistible. It’s like an extra hug for the brownies!

  • Coconut Macaroons: These chewy delights are an unexpected match. Their sweetness and coconut flavor add an exotic flair to your dessert spread, making it fun and festive.

  • Hot Chocolate: Pair your brownies with a cozy cup of hot chocolate for the ultimate indulgent experience. This duo is perfect for chilly evenings or holiday gatherings.

Monster Cookie Fudgy Brownies Recipe FAQs

How do I know when my brownie layer is fully cooked?
You want to bake the brownie layer until it’s set but still has a slight jiggle in the center. Check around the 15-minute mark – if it’s just firm and doesn’t appear wet, it’s ready for the cookie layer.

What if my monster cookie dough is too sticky?
If your monster cookie dough feels sticky, don’t worry! Chill the dough for a bit longer to firm it up. Alternatively, you can sprinkle a little extra flour, one tablespoon at a time, until you achieve a manageable consistency.

How should I store my Monster Cookie Fudgy Brownies?
Store your brownies in an airtight container at room temperature for up to 5 days. If you want to preserve their fresh taste longer, refrigerate them for up to a week, but allow them to come to room temperature before serving for the best texture.

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Can these brownies be frozen?
Absolutely! To freeze, wrap your brownies tightly in plastic wrap, then place them in a freezer-safe bag. They will stay fresh for up to 3 months. When you’re ready to indulge, simply thaw them in the fridge overnight or at room temperature for a couple of hours.

Are there any allergy considerations for this recipe?
Yes, if you’re making these brownies for someone with nut allergies, you can substitute the creamy peanut butter with sunbutter or a seed butter alternative. Always double-check the ingredient labels to ensure they’re allergy-friendly!

Can I use gluten-free flour for this recipe?
Certainly! You can swap both the brownie and cookie layers with a gluten-free flour blend. Just make sure to check the packaging for any specific measurements or additional binding agents needed to achieve the perfect texture.

Monster Cookie Fudgy Brownies

Monster Cookie Fudgy Brownies: Irresistibly Decadent Delight

Indulge in these Monster Cookie Fudgy Brownies, a perfect blend of rich chocolate and playful cookie flavors.
Prep Time 40 minutes
Cook Time 35 minutes
Chill Time 40 minutes
Total Time 1 hour 55 minutes
Servings: 16 squares
Course: Dessert
Calories: 200

Ingredients
  

For the Brownie Layer
  • 1 cup White Granulated Sugar Consider using brown sugar for a deeper flavor.
  • 2 large Eggs Provide structure and moisture.
  • 1 Egg Yolk Provides structure and moisture.
  • 5 tbsp Unsalted Butter Adds richness.
  • 1/3 cup Canola or Vegetable Oil Adds moisture and tenderness.
  • 2 tsp Pure Vanilla Extract Enhances overall flavor.
  • 1/2 cup All-Purpose Flour Provides structure.
  • 3/4 cup Unsweetened Cocoa Powder Boosts chocolate flavor.
  • 1 tbsp Cornstarch Tenderizes texture.
  • 1/4 tsp Salt Balances the sweetness.
  • 1/2 cup Semi-Sweet Chocolate Chips Adds richness.
  • 1/2 cup Milk Chocolate Chips Adds richness.
For the Monster Cookie Layer
  • 1/2 cup All-Purpose Flour Provides structure.
  • 1 tsp Cornstarch Helps tenderize the cookies.
  • 1/2 tsp Baking Soda Acts as a leavening agent.
  • 1/8 tsp Baking Powder Adds fluffiness.
  • 1/4 tsp Salt Enhances flavor.
  • 1/4 cup Unsalted Butter Balances flavors and adds moisture.
  • 1/3 cup Brown Sugar Increases softness.
  • 1/8 cup White Granulated Sugar Provides an extra boost of sweetness.
  • 1/4 cup Creamy Peanut Butter Contributes flavor and chewiness.
  • 1 large Egg Binds all ingredients together.
  • 1/2 cup Quick Oats Adds nice texture.
  • 1/2 cup Mini Chocolate Chips Offers bursts of chocolate.
  • 1/2 cup Mini M&Ms Offers vibrant color.

Equipment

  • 9x9-inch baking pan
  • Mixing bowls
  • whisk
  • mixer
  • Parchment Paper

Method
 

Step-by-Step Instructions
  1. In a medium bowl, combine the flour, cornstarch, baking soda, baking powder, and salt to create a dry mixture. In a larger bowl, cream together the unsalted butter, brown sugar, white sugar, and creamy peanut butter until fluffy and light. Add the vanilla extract and egg, mixing until well combined, then gradually incorporate the dry mixture. Stir in the oats, mini chocolate chips, and mini M&Ms, then chill the dough in the refrigerator for 40 minutes.
  2. Preheat your oven to 325°F (163°C) and line a 9x9 inch baking pan with parchment paper, lightly greasing the sides. In a medium bowl, whisk together the flour, cocoa powder, cornstarch, and salt. In a mixer, beat together the sugars and eggs for about 5 minutes until fluffy and pale. Mix in the melted unsalted butter, oil, and vanilla, then fold in the dry ingredients. Pour the brownie batter into the prepared pan and spread it evenly before baking for 15 minutes to set slightly.
  3. Once the brownie base has set, flatten the chilled monster cookie dough into discs and evenly layer it over the partially baked brownies. Gently press the cookie dough down to ensure it adheres to the brownie layer. Bake the assembled dessert for an additional 20-30 minutes, or until the top no longer jiggles and is a light golden brown. Allow the pan to cool completely before proceeding to slice into decadent squares.

Nutrition

Serving: 1squareCalories: 200kcalCarbohydrates: 26gProtein: 3gFat: 10gSaturated Fat: 5gPolyunsaturated Fat: 2gMonounsaturated Fat: 2gCholesterol: 25mgSodium: 90mgPotassium: 150mgFiber: 1gSugar: 15gVitamin A: 200IUCalcium: 20mgIron: 1mg

Notes

Chill the monster cookie dough for 40 minutes to maintain shape, avoid overmixing the brownie batter, check your oven accuracy, and allow brownies to cool completely for the best texture.

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