Let’s talk about a treat that sits right at the beautiful intersection of a cookie and a snack bar: the humble, glorious Oatmeal Chocolate Chip Bar. This isn’t just a dessert; it’s a lunchbox hero, a picnic essential, and the answer to that 3 p.m. slump when you need something hearty and sweet.
Imagine the cozy, wholesome chew of an oatmeal cookie, loaded with melty chocolate chips, but in a fuss-free, no-scooping-required bar form. These oatmeal chocolate chip bars are softer, chewier, and somehow even more satisfying than their round counterparts. Whether you call them oatmeal blondies, slab cookies, or simply the best thing in your baking dish, this recipe is your new one-bowl, no-chill, always-perfect standby. Let’s preheat that oven.
WHY MAKE THIS RECIPE
The Ultimate Easy, Crowd-Pleasing Treat
When you need a guaranteed hit for a bake sale, potluck, or after-school snack, these oatmeal chocolate chip bars are your absolute ace in the hole. They travel like a dream, cut into perfect portions, and appeal to absolutely everyone.
They strike that magical balance between being indulgent enough to feel like a treat and wholesome enough (thanks to the oats!) that you don’t feel bad having a second one. For a reliable and delicious baked good, this recipe is a no-fail baking project.
Simplicity and Nostalgia in One Pan
This recipe for oatmeal chocolate chip bars is beautifully straightforward. No fancy equipment, no complicated techniques, just one bowl, a wooden spoon, and a baking pan. The process is as comforting as the result. The smell of oats, brown sugar, and chocolate baking will fill your kitchen with a sense of pure, nostalgic warmth. Itโs the kind of baking that feels like a hug, reminding you of the best parts of childhood.
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Oatmeal Chocolate Chip Bars
- Total Time: 40 minutes
- Yield: 16 bars 1x
- Diet: Vegetarian
Description
Soft and chewy oatmeal chocolate chip bars made with hearty oats, brown sugar, and melty chocolate chips an easy crowd-pleasing dessert or snack.
Ingredients
- 1 cup unsalted butter, melted
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 1/2 cups rolled oats
- 1 1/2 cups chocolate chips
Instructions
- 1. Preheat the oven to 350ยฐF (175ยฐC) and line a 9×13-inch baking pan with parchment paper
- 2. In a large bowl, whisk together melted butter, brown sugar, and granulated sugar until smooth
- 3. Add eggs and vanilla extract and mix until fully combined
- 4. In a separate bowl, whisk together flour, baking soda, and salt
- 5. Gradually stir the dry ingredients into the wet mixture
- 6. Fold in the rolled oats and chocolate chips
- 7. Spread the batter evenly into the prepared pan
- 8. Bake for 22โ28 minutes until set and lightly golden on top
- 9. Allow to cool completely before slicing into bars
Notes
- Do not overbake to keep the bars soft and chewy
- You can add nuts or use dark chocolate chips if desired
- Bars store well in an airtight container for several days
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 260
- Sugar: 22 g
- Sodium: 180 mg
- Fat: 13 g
- Saturated Fat: 7 g
- Unsaturated Fat: 5 g
- Trans Fat: 0 g
- Carbohydrates: 34 g
- Fiber: 2 g
- Protein: 4 g
- Cholesterol: 55 mg
Keywords: oatmeal chocolate chip bars, oatmeal bars, cookie bars, easy dessert
HOW TO MAKE OATMEAL CHOCOLATE CHIP BARS
Ingredients
- 1 cup (2 sticks) unsalted butter, melted and slightly cooled
- 1 ยฝ cups packed light brown sugar
- 2 large eggs, at room temperature
- 1 tablespoon pure vanilla extract
- 2 cups old-fashioned rolled oats
- 1 ยฝ cups all-purpose flour
- 1 teaspoon baking soda
- ยฝ teaspoon salt
- 1 ยฝ cups semi-sweet chocolate chips
Directions
First, preheat your oven to 350ยฐF (175ยฐC). Grease a 9×13 inch baking pan and line it with parchment paper, leaving an overhang on two sides for easy lifting later.
Next, in a large mixing bowl, whisk together the melted butter and brown sugar until well combined. It will look like a thick, glossy caramel.

Now, add the eggs and vanilla extract to the butter-sugar mixture. Whisk vigorously for about a minute until the mixture is smooth and slightly lighter in color.
In a separate medium bowl, combine the rolled oats, flour, baking soda, and salt. Stir this dry mixture into the wet ingredients with a wooden spoon or rubber spatula until just a few flour streaks remain.
Finally, fold in the chocolate chips until everything is evenly distributed and no dry pockets remain. Be careful not to overmix.
Spread the thick, chunky batter evenly into your prepared pan. You may need to press it down gently with damp fingers.
Bake for 25-30 minutes, or until the top is golden brown, the edges are pulling away from the pan, and a toothpick inserted into the center comes out with just a few moist crumbs (not wet batter).
This is crucial: let the bars cool completely in the pan set on a wire rack. This allows them to set up for perfect, clean slicing. Use the parchment paper to lift the entire slab of oatmeal chocolate chip bars out before cutting into squares.

NUTRITION AND HEALTH CONSIDERATIONS
A More Substantial Sweet Treat
Compared to a standard chocolate chip cookie, these chocolate chip oatmeal bars have the added benefit of whole grain oats. Oats provide soluble fiber, which can help you feel fuller longer. While still a dessert, they offer a bit more staying power as a snack. Using a high-quality semi-sweet chocolate also means you can use less sugar overall without sacrificing that rich chocolate flavor.
Simple Swaps for Your Oatmeal Bars
This recipe for oatmeal chocolate chip bars is wonderfully adaptable. For a gluten-free version, use a certified gluten-free oat brand and a 1:1 gluten-free flour blend. To make them dairy-free, use your favorite plant-based butter. You can also swap half the chocolate chips for raisins or dried cranberries for a different twist on your oatmeal bars.
HOW TO SERVE OATMEAL CHOCOLATE CHIP BARS
The Perfect Grab-and-Go Snack
These oatmeal chocolate chip bars are the definition of portable. Pack them in lunch boxes, take them on road trips, or wrap them individually for a quick breakfast on the run with a piece of fruit. Their sturdy yet chewy texture holds up perfectly in a bag or container.
Dressed Up for Dessert
While perfect plain, you can easily elevate these oatmeal bars for a dessert plate. Serve a warm bar with a scoop of vanilla bean ice cream and a drizzle of caramel sauce for an incredible sundae-style treat. They also pair beautifully with a cold glass of milk or a hot cup of coffee.

HOW TO STORE OATMEAL CHOCOLATE CHIP BARS
Keeping Them Fresh and Chewy
Store cooledย oatmeal chocolate chip barsย in an airtight container at room temperature for up to 5 days. For maximum chewiness, you can add a piece of bread to the container, which will keep the bars soft by releasing moisture. Theseย oatmeal barsย also freeze exceptionally well for up to 3 months. Simply wrap individual bars or the whole slab tightly in plastic wrap and foil before freezing.
The Magic of Make-Ahead
This is an excellent make-ahead recipe for busy weeks. You can bake the entire pan of oatmeal chocolate chip bars, let it cool, and store it covered right on the counter. Having a ready-made treat on hand makes busy mornings and unexpected guests a breeze to handle.
TIPS TO MAKE THE BEST OATMEAL CHOCOLATE CHIP BARS
Your Kitchen Companion: Essential Tips
- Don’t Overbake: The key to a soft, chewy bar is taking it out of the oven when it’s just set. The residual heat in the pan will continue to cook it as it cools.
- Use Old-Fashioned Oats: Quick oats will absorb too much moisture and make the oatmeal bars dense and gummy. Old-fashioned rolled oats provide the perfect texture and chew.
- Line Your Pan: The parchment paper sling isn’t just for easy cleanup; it’s the only way to guarantee you can get the whole slab of oatmeal chocolate chip bars out in one piece for perfect slicing.
Details for Perfect Bars
For a deeper, nuttier flavor in your oatmeal chocolate chip bars, you can brown the melted butter before adding the sugar. Let it cool slightly so it doesn’t cook the eggs. This one simple step adds a fantastic caramel note to the entire batch.
Delicious Variations to Try
Feel free to make these oatmeal bars your own! Add ยฝ cup of chopped walnuts or pecans for crunch. Swap the chocolate chips for butterscotch or white chocolate chips. For a “monster cookie” twist on your oatmeal chocolate chip bars, add ยฝ cup of M&M’s along with the chocolate chips.
Helpful Recipe Notes
If your brown sugar has hardened, simply place it in a bowl with a damp paper towel, cover with plastic wrap, and microwave in 20-second intervals until soft again. This will ensure your batter for the oatmeal chocolate chip bars has the right consistency.
FAQs
Can I use quick oats instead of old-fashioned?
I don’t recommend it for this oatmeal chocolate chip bars recipe. Quick oats are more finely cut and will absorb the liquid differently, resulting in a denser, less textured bar. Old-fashioned oats give you that perfect hearty chew.
Why did my bars turn out cakey and dry?
This usually means they were overbaked or you overmeasured the flour. Always spoon your flour into the measuring cup and level it off with a knife. Don’t scoop directly from the bag. Also, for perfect oatmeal chocolate chip bars, start checking for doneness at the 25-minute mark.
Can I double this recipe?
Absolutely! You can double all the ingredients and bake it in a standard half-sheet pan (18×13 inches) for a big batch of oatmeal chocolate chip bars. You may need to add a few extra minutes to the baking time. Just watch for those visual cues: golden edges and a set center.
CONCLUSION
These Oatmeal Chocolate Chip Bars are the workhorse of the cookie jar world. They are endlessly reliable, universally loved, and so simple to make that you’ll memorize the recipe after one try. This recipe for oatmeal chocolate chip bars reminds us that the best baked goods aren’t always the fanciest; they’re the ones that bring people together, satisfy a craving, and make an ordinary day feel a little sweeter. Bake a pan, share them freely, and enjoy the simple joy they bring.