Oatmeal Chocolate Chip Bars Recipe
If you’re looking for a deliciously easy treat that brings together chewy oats and gooey chocolate in every bite, Oatmeal Chocolate Chip Bars are about to become your new favorite go-to recipe. These bars are the perfect blend of nostalgic comfort and playful fun, packed with buttery richness, melty chocolate, and a rainbow of M&Ms. Whether you’re making them for a family get-together, a lunchbox surprise, or just to treat yourself, these bars deliver everything you love about homemade baking—no fancy equipment or fussy steps required!

Ingredients You’ll Need
This recipe keeps things simple, but each ingredient has a special role in creating irresistible Oatmeal Chocolate Chip Bars. From the structure that flour adds to the charming crunch of M&Ms, these pantry staples work together for an unbeatable result.
- All-Purpose Flour: The backbone of your bars, providing structure and that tender bite.
- Baking Powder: Just a touch to lift the bars and keep them delightfully chewy instead of dense.
- Ground Cinnamon: Adds subtle warmth and depth that perfectly complements the chocolate and oats.
- Kosher Salt: A pinch balances sweetness and makes the other flavors pop.
- Unsalted Butter: Melted for rich, even flavor and irresistibly moist texture.
- Brown Sugar: Brings caramel notes and chewiness—light or dark both work beautifully.
- Egg: Binds everything together and gives your bars soft structure.
- Pure Vanilla Extract: Enhances all the sweet flavors with classic vanilla aroma.
- Old Fashioned / Rolled Oats: The star ingredient for hearty chew and a touch of rustic charm.
- Semi-Sweet Chocolate Chips: Pockets of melty chocolate goodness in every bite.
- M&Ms: Pops of color, a bit of crunch, and extra chocolate flair—perfect for celebrations or everyday fun.
How to Make Oatmeal Chocolate Chip Bars
Step 1: Prep the Pan
Preheat your oven to 350°F (177°C). To make sure your Oatmeal Chocolate Chip Bars lift right out and look picture-perfect, line an 8×8-inch metal pan with parchment paper, or spray it generously with nonstick spray. This trick means easy cleanup, too!
Step 2: Mix the Dry Ingredients
In a medium mixing bowl, combine the flour, baking powder, cinnamon, and kosher salt. Give them a good whisk to evenly distribute the baking powder and ensure you don’t get any surprise salty pockets later on.
Step 3: Blend the Wet Ingredients
Grab a larger bowl and whisk together the melted (and cooled) butter with brown sugar until it’s silky smooth and well-mixed. Then, add your egg and vanilla extract, whisking once more until your mixture is beautifully even.
Step 4: Bring it All Together
Pour the dry mixture over your wet ingredients. Stir them gently with a spatula or wooden spoon, just until no dry flour remains—don’t overmix! This keeps your bars soft and chewy.
Step 5: Fold in Oats, Chocolate, and M&Ms
Add the rolled oats, chocolate chips, and most of the M&Ms to the bowl. Save a few for the top if you like extra color. Gently fold everything together so every bite will be packed with goodies.
Step 6: Spread and Bake
Pour the batter into your prepared pan, leveling it with a spatula. Scatter any reserved chocolate chips or M&Ms on top for maximum curb appeal. Bake for 24 to 28 minutes, until the edges are lightly golden. If you prefer extra gooey bars, stick to the lower end of the range; for firmer bars, bake them a little longer.
Step 7: Cool and Slice
Let your Oatmeal Chocolate Chip Bars cool fully in the pan—this helps them firm up and makes slicing neat squares a breeze. Once they’re set, lift them out using the parchment, cut into bars, and get ready to dig in!
How to Serve Oatmeal Chocolate Chip Bars

Garnishes
For a finishing touch, try a light dusting of powdered sugar, a drizzle of melted chocolate, or a sprinkle of extra M&Ms. This adds a fun flourish and makes your Oatmeal Chocolate Chip Bars party-ready.
Side Dishes
Pair your bars with a tall glass of cold milk, a scoop of vanilla ice cream, or fresh berries for a dreamy, well-rounded treat. They’re also a hit served alongside hot coffee or tea for a comforting afternoon snack.
Creative Ways to Present
Cut the bars into bite-size cubes and skewer them with fruit for a playful dessert platter. Or wrap individual bars in parchment and twine—perfect for lunchboxes, bake sales, or thoughtful homemade gifts.
Make Ahead and Storage
Storing Leftovers
Keep any extra Oatmeal Chocolate Chip Bars in an airtight container at room temperature. They stay fresh and chewy for up to three days, making them a great make-ahead option.
Freezing
These bars freeze beautifully! Wrap individual bars or the whole uncut slab tightly in plastic wrap, then place in a freezer bag. They’ll keep their flavor and texture for up to two months. Thaw at room temperature whenever you need a treat.
Reheating
For that just-baked warmth, pop a bar in the microwave for about 10 seconds. You’ll get melty chocolate, soft oats, and a comforting aroma in an instant.
FAQs
Can I use quick oats instead of rolled oats?
You can substitute quick oats if that’s what you have on hand, but the bars will have a slightly softer, less chewy texture. Rolled oats give that classic hearty bite to Oatmeal Chocolate Chip Bars.
Can I swap the M&Ms for another candy?
Absolutely! Try chopped peanut butter cups, toffee bits, or even white chocolate chips. The bars are super versatile, so feel free to experiment with your favorites.
How do I know when the bars are done baking?
The edges should look lightly golden and set, while the center may still look slightly soft. A toothpick inserted in the center should come out mostly clean or with just a few moist crumbs—avoid overbaking for best results!
Can Oatmeal Chocolate Chip Bars be made gluten-free?
Yes! Simply use a gluten-free all-purpose flour blend and make sure your oats are certified gluten-free. The taste and texture will still be amazing.
Why did my bars turn out dry or crumbly?
This can happen if you overbake them or use too much flour. Spoon your flour into the measuring cup and level it off, and keep an eye on them in the oven for that perfect chewy texture.
Final Thoughts
There’s something just magical about making a batch of Oatmeal Chocolate Chip Bars from scratch—the aroma, the gooey chocolate, the pops of color. I can’t wait for you to try this recipe and share it with people you care about. Give these bars a spot in your baking rotation, and don’t be surprised when everyone asks for the recipe!
PrintOatmeal Chocolate Chip Bars Recipe
These Oatmeal Chocolate Chip Bars are a delightful treat that combines the goodness of oats with the sweetness of chocolate chips and M&Ms. Perfect for a quick snack or a lunchbox treat.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 12 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Dry Ingredients:
- 1 cup All-Purpose Flour (125 grams)
- 1/4 teaspoon Baking Powder
- 1/4 teaspoon Ground Cinnamon
- 1/4 teaspoon Kosher Salt
Wet Ingredients:
- 8 Tablespoons Unsalted Butter, melted
- 1 cup Brown Sugar
- 1 large Egg
- 1 teaspoon Pure Vanilla Extract
Mix-Ins:
- 1 cup Old Fashioned / Rolled Oats
- 1 cup Semi-Sweet Chocolate Chips
- 1/2 cup M&Ms
Instructions
- Preheat oven: Preheat oven to 350°F / 177°C. Line an 8×8 metal baking pan with parchment paper or nonstick cooking spray.
- Mix dry ingredients: In a medium bowl, whisk flour, baking powder, cinnamon, and salt. Set aside.
- Combine wet ingredients: In a larger bowl, whisk melted butter and brown sugar. Add egg and vanilla.
- Blend dry and wet mixtures: Stir dry ingredients into wet mixture until just combined.
- Add mix-ins: Gently fold in oats, chocolate chips, and M&Ms.
- Bake: Spread batter in pan, bake for 24-28 minutes until edges are browned.
- Cool and serve: Cool in pan, slice, and serve. Store leftovers at room temperature.
Notes
- For a variation, try adding nuts or dried fruits to the mix-ins.
- Adjust sweetness by using dark or light brown sugar.
- Ensure butter is cooled slightly to avoid cooking the egg when mixing.
Nutrition
- Serving Size: 1 bar
- Calories: 250
- Sugar: 18g
- Sodium: 80mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 35mg
Keywords: Oatmeal Chocolate Chip Bars, Baking, Dessert, Oats, Chocolate Chips, M&Ms