M&M Chocolate Bars Recipe
Introduction
These M&M Chocolate Bars are a delightful combination of chewy oats, rich chocolate, and colorful candy for a fun and satisfying treat. Perfect for sharing or satisfying a sweet craving, they are easy to make and absolutely delicious.

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
- Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish and set it aside.
- Step 2: In a large bowl, combine the flour, rolled oats, brown sugar, salt, and 1 cup of the softened butter. Mix well with a spoon.
- Step 3: Remove 1 cup of this oat mixture and set it aside for topping later.
- Step 4: Press the remaining oat mixture evenly into the bottom of the prepared baking dish to form the crust.
- Step 5: In a medium saucepan over medium-low heat, combine the sweetened condensed milk, chocolate chips, and the remaining 2 tablespoons of butter. Stir constantly until the chocolate has melted and the mixture is smooth.
- Step 6: Pour the melted chocolate mixture over the oat crust and spread it evenly with a spatula.
- Step 7: Sprinkle the reserved oat mixture evenly over the chocolate layer, then top with the plain M&M’s.
- Step 8: Bake for 25–30 minutes until the top is set and golden. Allow the bars to cool completely in the pan before cutting into squares.
Tips & Variations
- For extra crunch, try adding chopped nuts like walnuts or pecans to the oat mixture before baking.
- Use peanut butter M&M’s or other flavored candy for a different twist on flavor and color.
- If you prefer a fudgier texture, reduce the oat topping slightly or press it more firmly before baking.
Storage
Store cooled bars in an airtight container at room temperature for up to 5 days. For longer storage, keep them in the refrigerator for up to 2 weeks. To soften chilled bars before serving, let them come to room temperature or warm briefly in the microwave.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use old-fashioned rolled oats instead of quick-cooking oats?
Yes, you can substitute old-fashioned rolled oats, but the texture may be chewier and less smooth. Quick oats blend better in the crust and topping.
Can I make these bars gluten-free?
To make these bars gluten-free, use certified gluten-free oats and substitute the all-purpose flour with a gluten-free flour blend that measures cup-for-cup.
PrintM&M Chocolate Bars Recipe
These M&M Chocolate Bars are a delightful treat featuring a chewy oat and brown sugar base topped with a luscious melted chocolate and sweetened condensed milk layer, finished with a colorful sprinkle of M&M’s. Perfect for a dessert or snack, they combine rich chocolate flavors with a satisfying oat crunch.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 24 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Base and Topping
- 1½ cups all-purpose flour
- 1½ cups quick-cooking rolled oats
- 1 cup packed light brown sugar
- 1 teaspoon salt
- 1 cup unsalted butter, softened
- 2 tablespoons unsalted butter, softened
- 1 cup plain M&M’s
Chocolate Layer
- 1 (14-ounce) can sweetened condensed milk
- 1 (11.5-ounce) bag milk chocolate chips
Instructions
- Preheat and Prepare Pan: Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking dish thoroughly and set aside.
- Mix Dry Ingredients and Butter: In a large bowl, combine the all-purpose flour, quick-cooking rolled oats, packed light brown sugar, salt, and 1 cup of softened unsalted butter. Stir with a spoon until well mixed. Reserve 1 cup of this mixture separately for later use.
- Form the Base Layer: Press the remaining oat mixture firmly into the bottom of the prepared baking dish, creating an even base layer.
- Prepare Chocolate Mixture: In a medium saucepan over medium-low heat, combine the sweetened condensed milk, milk chocolate chips, and the remaining 2 tablespoons of unsalted butter. Stir constantly until the chocolate chips are fully melted and the mixture is smooth and well combined.
- Assemble Layers: Pour the melted chocolate mixture evenly over the oat base layer in the baking dish. Spread to cover the entire surface. Then sprinkle the reserved 1 cup of oat mixture over the chocolate layer for a crumbly topping.
- Add M&M’s and Bake: Scatter the plain M&M’s evenly on top of the crumbly oat layer. Place the baking dish in the preheated oven and bake for 25 to 30 minutes, until the top is golden and set.
- Cool and Serve: Remove the baking dish from the oven and allow the bars to cool completely in the pan to set properly before cutting into squares and serving.
Notes
- Make sure to cool the bars completely; warm bars may be too soft and fall apart when cut.
- You can substitute plain M&M’s with peanut or other flavored varieties for a different twist.
- Store bars in an airtight container at room temperature for up to 3 days or refrigerate to extend freshness.
- These bars can be frozen for up to 1 month; thaw at room temperature before serving.
Keywords: M&M Bars, Chocolate Bars, Oat Bars, Sweet Treat, Dessert Bars, Easy Dessert

