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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.
So yummy!
My family loves these and has requested them many times already. Quick and easy recipe.
Soooo yummy!
These have become a family favorite! Soooo yummy!
I’ve made these at least twice. I love them! This year I’m trying to make holiday treats in advance. Can they be frozen?
Glad you like them! You know, I have not tried freezing them. So, I am not sure how they freeze.
My family loves these!
So glad they do!! Thank you!
Melt in your mouth delicious! I w I was looking for an easy recipe for my kids to help me make for Father’s Day for my husband. This was the pefect one! Great tasting, simple directions and wonderful website!
Glad you found this one! We make these quite a bit for those reasons! Thank you!
Easy Delicious treats!
So glad you think so!! Thank you 🙂
GreaT recipe. Family loves this. I add a teaspoon of vanilla to the choc. Mixture.
Thank you!
Sounds great! I am glad your family loves them! Thank you 🙂
Such a quick and delicious dessert to take to a get together! Thanks!
These were scary good with M&M’s! Next time I’m going to try toffee bits. I may be in big trouble. 😉