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Our best-loved M&M chocolate bars have chewy layers of oats and chocolate studded with M&Ms – this top-requested dessert feeds a crowd!
Our go-to Dessert
We LOVE hosting and inviting friends and family over – and of course feeding them! Which is why we love bar desserts that feed a crowd, like our best-loved M&M chocolate bars!
This dessert is a go-to and requested ALL of the time! As mentioned before, they make several servings in one batch (15 in this one) and are easy to throw together (about 10 minutes prep).
And who doesn’t love M&Ms? You could even change it up and use your favorite flavor. We LOVE Baking with M&Ms – from M&M cookies to M&M cookie cake – they’re a delicious addition to so many desserts and the perfect addition to the chewy oats in this one.
Even our local firefighters love this treat and request it each year!
WHY WE LOVE IT:
- So easy – so yummy! They are so simple and delicious. EVERYONE asks for the recipe. They’re also great with ice cream.
- The perfect treat to change up. Use different M&Ms for different holidays (or birthdays!).
- Plan ahead of time. This treat can easily be made in advance which is great for busy days.
Ingredients
PREP TIME: 10 minutes
COOK TIME: 25 minutes
- 1½ cups all-purpose flour – see How to Measure Flour
- 1½ cups quick-cooking rolled oats – also known as instant oats
- 1 cup packed light brown sugar – or dark brown sugar
- 1 teaspoon salt
- 1 cup plus 2 tablespoons unsalted butter softened, divided – see How to Soften Butter Quickly
- 1 (14-ounce) can sweetened condensed milk – NOT evaporated milk
- 1 (11.5-ounce) bag milk chocolate chips – or use semi-sweet or dark chocolate chips. Try peanut butter, white chocolate, or peanut butter chips.
- 1 cup plain M&M’s candy – or mini M&M’s, Reese’s pieces, holiday sprinkles, toffee bits
How to Make M&M Chocolate Bars
- PREP. Preheat the oven to 350°F. Grease a 9-x-13-inch baking dish and set aside, or Line the Pan with Parchment Paper.
- OAT BATTER. In a large bowl, mix 1½ cups flour, 1½ cups oats, 1 cup brown sugar, 1 teaspoon salt and 1 cup butter with a spoon. Remove 1 cup of the mixture and set aside.
- Press the remaining oat mixture into the bottom of the prepared baking dish.
- CHOCOLATE LAYER. In a medium pot, combine 1 can of condensed milk, 1 bag of chocolate chips, and the remaining 2 tablespoons of butter over medium-low heat. Stir constantly until the chips are melted and everything is mixed well.
- Pour the melted chocolate mixture over the oat layer and spread evenly. Sprinkle the reserved 1 cup oat mixture over the chocolate.
- BAKE. Top with 1 cup plain M&M’s and bake for 25–30 minutes. Let cool completely in the pan before cutting.
More Like This
Cookie Bars
More M&M Treats
M&M Brownies
35 mins
Peanut Butter M&M Cookies
17 mins
Chocolate Chip M&M Cookies
18 mins
M&M Cookie Cake
28 mins
Collections
M&M Chocolate Bars
Equipment
Ingredients
- 1½ cups all-purpose flour
- 1½ cups quick-cooking rolled oats
- 1 cup packed light brown sugar
- 1 teaspoon salt
- 1 cup plus 2 tablespoons unsalted butter softened, divided
- 1 (14-ounce) can sweetened condensed milk
- 1 (11.5-ounce) bag milk chocolate chips
- 1 cup plain M&M’s
Instructions
- Preheat the oven to 350°F. Grease a 9×13-inch baking dish and set aside.
- In a large bowl, mix flour, oats, brown sugar, salt, and 1 cup butter with a spoon. Remove 1 cup of the mixture and set aside.
- Press the remaining mixture into the bottom of the prepared baking dish.
- In a medium pot, combine condensed milk, chocolate chips, and the remaining 2 tablespoons of butter over medium-low heat. Stir constantly until the chips are melted and everything is mixed well.
- Pour the chocolate mixture over the oat layer and spread evenly. Sprinkle the reserved oat mixture over the chocolate.
- Top with M&M’s and bake for 25–30 minutes. Let cool completely in the pan before cutting.
Video
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Recipe FAQ
Whether you make these ahead of time or wish to store leftovers, store covered on the counter for 3 days. To freeze, wrap tightly with plastic and a freezer bag for 2-3 months.
Hi, these look great! The only quick oats I have are the premade packets of brown sugar maple oatmeal from Quakers. Can I use this as the quick oats?
I would definitely try to buy some. Have never used the oatmeal packet oats and to ensure they turn out I’d use the package of quick oats you get at the store. 😉
….. NO !!! …..
I cannot wait to make these!! Is it melted butter or softened butter? I see both in different places!
These bars are amazing!!!! The melted butter actually goes in the flour/oatmeal mixture and the 2 Tbsp of butter (doesnt need to be softened) goes in the sweetened cond milk mixture. Yum! I could eat the whole pan!
These look amazing. I’m so trying these this week! Your desserts always look so good….and no, you are not crazy–it’s the life of a blogger!
Great Treat! I’m making these for After School Treats with GF Flour!
Let me know what your kids think. They are one of our FAVORITE treats. 😉
Can these be frozen, if I make them ahead of time?
Hi Dawn. Unfortunately, I haven’t tried to freeze them. If you try, let me know, and I’ll be sure to make a note of it so others can know if it does work. 🙂
Love bars like this! Chewy, with sweet. cond milk, the M&Ms, mmm! Right up my alley & pinned!
I made these this week.
I ADORED them.
As did my husband and five of our children and all of my friends at our co-op where I shared them.
I replaced the m&m’s with chocolate covered sunflower seeds.
These are definitely on my go-to list now as well.
(And I’m sharing your link on my blog this week and sending people to YOU!)
Thank you so much for sharing.
Oh man, I would have never thought to try Chocolate Covered sunflowers seeds. They would be delicious! Thank you so much for the tip. I will try that next time I’m making them. 🙂