M&M's Brownies Recipe

Featured in Irresistible Sweet Treats.

Rich, fudgy brownies made with melted chocolate and cocoa powder, topped with M&Ms. Takes about an hour total, makes 16 decadent squares.
Clare Greco
Updated on Thu, 23 Jan 2025 10:13:49 GMT
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Indulgently fudgy brownies studded with colorful M&M's create the perfect balance of chewy chocolate goodness and candy-coated crunch. These brownies elevate the classic chocolate treat with a playful twist that makes them irresistible for any occasion.

After countless tests, I've found that allowing the melted chocolate mixture to cool slightly before adding eggs creates that perfect chewy texture my family craves.

Essential Ingredients:

  • Dutch-process cocoa powder - Creates intense chocolate flavor and darker color; sift to remove lumps
  • Room temperature eggs - Critical for achieving that shiny, crackly top
  • Brown sugar - Adds moisture and chewiness; dark or light both work well
  • Quality butter - European-style preferred for richer taste
  • M&M's - Choose colors to match your occasion; don't mix into batter

Detailed Instructions:

Set up a double boiler by placing a heatproof bowl over simmering water. Combine butter, chocolate, and both sugars. Stir constantly until glossy and completely melted. Watch carefully - chocolate can scorch quickly.
Remove from heat and let cool for exactly 10 minutes. This cooling period is crucial - too hot and the eggs will scramble, too cool and you'll lose that shiny top.
Whisk in eggs one at a time, incorporating each fully before adding the next. The batter should become thick and glossy. Stop mixing as soon as each egg is incorporated to avoid adding too much air.
Sift cocoa powder and flour together to ensure no lumps. Fold gently into the batter with a spatula until just a few streaks remain. Overmixing here will make tough brownies.
Spread in lined pan, smoothing the top carefully. Sprinkle M&M's evenly, letting them sit on top rather than sinking in. This creates a beautiful presentation and ensures candy shells stay crisp.

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My secret weapon is chilling the brownies completely before cutting - clean, professional-looking squares every time.

The Perfect Pan Theory:

An 8x8 metal pan produces superior results to glass or ceramic. The metal conducts heat more evenly, creating that ideal contrast between crispy edges and fudgy center.

Alternative Mix-Ins:

While testing these brownies over years, I've discovered endless variations. My daughter's favorite combines dark and white chocolate M&M's for extra contrast.

Presentation and Serving:

These brownies shine when served slightly warm with a scoop of vanilla ice cream. For celebrations, dust with powdered sugar or drizzle with chocolate sauce before serving.

Storage Solutions:

Keep uncut brownies at room temperature up to 5 days
Freeze individual squares for up to 3 months
Thaw frozen brownies overnight at room temperature

Texture Perfection:

The key to maintaining that perfect fudgy texture lies in the cooling process. Allow brownies to cool completely in the pan, then rest for an additional hour before cutting.

Gift-Giving Tips:

These brownies make excellent gifts. Layer squares between parchment paper in a decorative tin. Include reheating instructions: 10 seconds in microwave restores that fresh-baked taste.

Chef's Final Notes:

Test with a skewer 2 inches from edge for perfect doneness
Add espresso powder to enhance chocolate flavor
Reserve some M&M's for topping after baking

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After developing this recipe through countless iterations, I've found these brownies strike the perfect balance between ease and indulgence. The combination of rich chocolate base and colorful M&M's creates a treat that's both nostalgic and sophisticated.

Serving Suggestions:

Transform these brownies into an elegant dessert by warming slightly and serving with fresh berries and whipped cream. For casual gatherings, cut into smaller squares for the perfect two-bite treat.

Final Tips:

Let ingredients reach room temperature for best results
Use an offset spatula for perfectly smooth tops
Store in single layer to preserve M&M's appearance

These brownies represent the perfect marriage of homemade quality and playful presentation. They've become my go-to recipe for everything from bake sales to birthday celebrations.

Special Occasions:

These brownies adapt beautifully to any celebration. Beyond holidays, consider:
Baby showers with pink/blue M&M's
Team celebrations with school colors
Wedding favors with metallic M&M's

Troubleshooting Common Issues:

If edges are hard: Reduce bake time by 3-5 minutes
If center is too gooey: Let cool completely before cutting
If M&M's crack: Add them in last 5 minutes of baking

Expert Tips for Perfect Results:

Line pan with parchment extending over edges for easy removal
Test doneness with toothpick 2 inches from edge
Cool completely before cutting for clean squares

The Science of Fudgy Brownies:

The ratio of fat to flour creates that perfect fudgy texture. Reducing flour or increasing butter makes them more dense and rich.

Final Chef's Notes:

Never skip the cooling time - it's crucial for texture
Rotate pan halfway through baking
Cut with hot knife for professional edges

After years of baking these brownies, they've proven themselves as the perfect blend of nostalgic comfort and elegant presentation. Their versatility and reliable results make them my most requested recipe for any celebration.

I find these brownies represent everything delightful about homemade treats - they're approachable enough for beginners but special enough for celebrations. Whether you're baking for a holiday or just craving chocolate, these M&M brownies never disappoint.

Fudgy M&M Brownies

Ultra fudgy, chocolatey brownies topped with colorful M&Ms. Made from scratch for the ultimate homemade treat.

Prep Time
15 Minutes
Cook Time
50 Minutes
Total Time
65 Minutes

Category: Sweet Treats

Difficulty: Intermediate

Cuisine: American

Yield: 16 Servings (16 brownies)

Dietary: Vegetarian

Ingredients

→ Base Ingredients

01 1¼ cups (285g) unsalted butter
02 2 ounces semi-sweet chocolate, chopped
03 1½ cups (300g) packed light brown sugar
04 ¾ cup (150g) granulated sugar
05 4 large eggs, room temperature

→ Dry Ingredients

06 1 cup (100g) Dutch process cocoa powder
07 ½ teaspoon salt
08 ¾ cup (95g) all-purpose flour, spooned and leveled

→ Flavoring & Topping

09 3 teaspoons vanilla extract
10 ⅔ cup M&M chocolate candies

Instructions

Step 01

Preheat oven to 350°F. Line 8x8 pan with parchment paper, leaving overhang. Spray bottom with non-stick spray.

Step 02

Create double boiler with 2 inches water. Melt butter, chocolate, and sugars together, stirring frequently until glossy but grainy. Remove from heat to cool slightly.

Step 03

Whisk in eggs one at a time until mixture becomes lighter and shiny.

Step 04

Stir in cocoa powder, salt, and vanilla until combined. Gently fold in flour until just a few streaks remain.

Step 05

Pour batter into prepared pan, level top. Sprinkle M&M's over surface.

Step 06

Bake 45-50 minutes until edges are set and toothpick 2 inches from edge has few crumbs. Don't overbake for fudgy texture.

Step 07

Place pan on wire rack and cool completely before cutting into squares.

Notes

  1. Can be frozen for up to 2 months
  2. Test for doneness 2 inches from edge for accurate results
  3. Don't overbake if you want fudgy rather than cakey brownies

Tools You'll Need

  • 8x8 baking pan
  • Parchment paper
  • Double boiler or heat-safe bowl
  • Wire cooling rack
  • Offset spatula

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy (butter)
  • Contains eggs
  • Contains wheat/gluten

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 285
  • Total Fat: 16 g
  • Total Carbohydrate: 35 g
  • Protein: 4 g