This M&M Brownie Recipe is everything you want in a dessert: rich, fudgy, chocolate packed, and loaded with colorful candy in every bite.
With a buttery base, deep cocoa flavor, and melty chocolate chips, these brownies stay soft and chewy while the M&M’s add just the right amount of crunch and fun. We are ALL fans of M&M filled treats at this house. They are a regularly requested brownie.
If brownies are your love language, you will also want to try Nutella Brownies, Easy Fudgy Brownies, Brookies, and Buckeye Brownies.
Why we think you’ll love it:
- All things chocolate. These brownies are ultra fudgy and rich, perfect for serious chocolate lovers.
- Packed with M&Ms! The mix of regular and mini M&Ms makes every bite colorful and fun for kids. Our kids also love M&M Cookies, M&M Cookie Cake, and M&M Cookie Bars.
- Perfect for sharing. One pan makes plenty, which is great for parties, potlucks, and school events. They also store well and taste just as great the next day.
- Simple steps. The recipe is straightforward and reliable, even for beginner bakers.
M&M Brownie Ingredients
- Butter (1 cup, melted and cooled) – provides rich flavor and creates that classic fudgy brownie texture.
- Vegetable oil (2 tablespoons) – adds extra moisture to keep the brownies soft and tender.
- Sugar (1 1/4 cups) – sweetens the brownies and helps create a shiny, crackly top.
- Brown sugar (1 cup, packed) – adds moisture and a deeper, caramel like sweetness.
- Eggs (4, room temperature) – give structure and richness while helping the brownies bake evenly.
- Vanilla extract (1 tablespoon) – enhances the chocolate flavor and adds warmth.
- All purpose flour (1 cup) – provides just enough structure without making the brownies cakey.
- Unsweetened cocoa powder (1 cup) – delivers deep, bold chocolate flavor.
- Salt (3/4 teaspoon) – balances the sweetness and intensifies the chocolate taste.
- Baking powder (1/2 teaspoon) – gives a slight lift so the brownies are fudgy but not dense.
- Chocolate chips (1/2 cup) – melt into the batter for extra chocolate pockets throughout.
- Regular M&M’s (1/2 cup) – add crunch, color, and a classic candy coated chocolate bite.
- Mini M&M’s (1/2 cup) – distribute more evenly, ensuring chocolate in every square.
How to Make M&M Brownies Recipe
PREP. Preheat the oven to 350°F. Line a 9×13-inch baking pan with parchment paper. Set aside.
WET INGREDIENTS. Add the melted butter, oil, and sugars to a medium bowl. Whisk well, then add the eggs and vanilla. Whisk for 2 additional minutes.
DRY INGREDIENTS. Sift the flour, cocoa, salt, and baking powder into a separate bowl.
M&Ms. Pour the dry mixture into the bowl with the wet mixture. Fold the ingredients until just combined. Add 1/2 c chocolate chips, 1/4 c mini M&M’s, and 1/4 c regular M&M’s. Fold into the batter until evenly distributed. Pour the batter into the lined baking pan. Sprinkle the remaining M&Ms evenly over the top.
BAKE. Bake for 25-30 minutes or until the center is cooked through and no longer jiggles. Allow the brownies to cool in the pan before lifting them out and cutting.
Use a plastic knife to cut the M&M fudge brownies. It’ll slice right through them.
Kristyn’s Recipe Tips
- Make sure the melted butter has cooled slightly so it does not scramble the eggs.
- Whisking the eggs and sugar well helps create a shiny brownie top.
- Do not overmix after adding the dry ingredients to keep the brownies fudgy.
- A plastic knife really does make cutting cleaner and easier! It’s my secret weapon.
- We used a metal pan to bake the brownies. If using a glass or ceramic dish, you may need to add a few extra minutes to the bake time since those dishes tend to heat up and distribute heat a little differently than metal pans.
M&M Brownie Recipe
Ingredients
- 1 cup butter melted and cooled
- 2 tablespoon vegetable oil
- 1¼ cup sugar
- 1 cup brown sugar packed
- 4 eggs room temperature
- 1 tablespoon vanilla extract
- 1 cup all purpose flour
- 1 cup unsweetened cocoa powder
- ¾ teaspoon salt
- ½ teaspoon baking powder
- ½ cup chocolate chips
- ½ cup regular M&M's
- ½ cup mini M&M's
Instructions
- Preheat the oven to 350°F. Line a 9×13 inch baking pan with parchment paper. Set aside.
- Add the melted butter, oil, and sugars to a medium bowl. Whisk well, then add the eggs and vanilla. Whisk for 2 additional minutes.
- Sift together the flour, cocoa, salt, and baking powder into a separate bowl.
- Pour the dry mixture into the bowl with the wet mixture. Fold the ingredients until just combined.
- Add 1/2 c chocolate chips, 1/4 c mini M&M's, and 1/4 c regular M&M's and fold into the batter until evenly distributed.
- Pour the batter into the lined baking pan. Sprinkle the remaining M&Ms evenly over the top.
- Bake for 25-30 minutes or until the center is cooked through and no longer jiggles.
- Allow the brownies to cool in the pan before lifting them out and cutting.
- Tip: Use a plastic knife to cut the brownies. It'll slice right through them.
Notes
- Whisking the eggs and sugar well helps create a shiny brownie top.
- Do not overmix after adding the dry ingredients to keep the brownies fudgy.
- A plastic knife really does make cutting cleaner and easier! It’s my secret weapon.
- I used a metal pan to bake the brownies. If using a glass or ceramic dish, you may need to add a few extra minutes to the bake time since those dishes tend to heat up and distribute heat a little differently than metal pans.
- These brownies can be stored tightly covered at room temperature for up to three days or frozen for longer storage.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Store in an airtight container at room temperature for up to 4 days, or in the refrigerator for up to 1 week.
Cool and cut. Place each brownie in a sandwich bag or wrap with plastic wrap. Place them together in a freezer Ziploc. Freeze for up to 3 months.
More Like This
M&M Treats
Brownies
Collections
This recipe was first shared July, 2021.
Perfect Brownie! The only negative – I should have sprayed the parchment paper.
Thank you for a delicious recipe!
Its a classic brownie, I love it!
I love finding a good homemade brownie recipe. This one is a keeper and the added M&Ms were super fun.
Who doesn’t like a brownie filled with m&m’s? The best treat to take anywhere or just enjoy at home.
These brownies were such a delicious, fun treat for the kiddos. They thoroughly enjoyed them! I will be making them again soon!
These cookies come out perfect every time!
I love how colorful m&m’s make brownies! We love doing this with the seasonal ones too!
What’s better than a brownie? An m&m brownie! The more chocolate, the better! We make these for family functions all the time!