These chewy Chocolate Chip Oatmeal Cookie Bars come together quickly and are my new go-to dessert when I need an easy treat for a crowd, a potluck, school events, or a simple family night. They combine a soft-baked cookie texture with gooey pockets of chocolate and a deep, molasses-rich flavor from dark brown sugar.
Chewy Chocolate Oatmeal Bars
These bars are exactly what you want when you need a quick dessert: a tender, chewy base studded with abundant chocolate and warmed with a touch of cinnamon. The dark brown sugar and browned butter bring caramelized, toasty notes that make each bite more interesting than a standard cookie bar. They’re forgiving to bake, require no stand mixer, and are ideal for bakers of all skill levels.
They’re perfect for bake sales, lunchboxes, potlucks, or a cozy after-dinner treat. You only need a bowl and a spoon—no special equipment—and they don’t require any chilling time. Because the texture is soft and slightly underbaked in the center by design, you’ll get a gooey result that still slices neatly once cooled.
Why You’ll Love This Recipe
- Ultra-chewy texture – Rolled oats and the right bake time give these bars a satisfying chew.
- Simple to make – One bowl, no mixer, minimal hands-on prep time.
- Rich, layered flavor – Browned butter and dark brown sugar add depth beyond standard cookie bars.
- Chocolate overload – Two kinds of chocolate chips melt into pockets of sweetness throughout.
- Great for sharing – Easily feeds a crowd and travels well for parties or school events.
Also try my Everything Cookies for another crowd-pleasing option!
Recipe Shopping List
Before you start, gather these pantry staples. For exact amounts, see the ingredient list in the recipe card below.
- Rolled oats (not quick oats) – Give the bars structure and chew.
- All-purpose flour – Keeps the bars tender and stable.
- Dark brown sugar – Adds moisture and toffee-like flavor from molasses.
- Baking soda – Provides a light lift and helps with browning.
- Salt – Balances sweetness and highlights the chocolate.
- Vanilla extract – Brings warmth and rounds the flavors.
- Eggs + extra yolk – Bind the dough and add richness; an extra yolk increases chewiness.
- Browned butter (cooled) – Optional but recommended for a nutty, complex flavor.
- Milk chocolate chips – Sweet and creamy pockets of chocolate.
- Semi-sweet chocolate chips – Add classic chocolate balance and depth.
- Cinnamon – A small amount warms the flavor without overpowering the chocolate.
If you love classic cookies, try the Chocolate Chip Cookies next!
How to Make These Bars
Here’s a quick overview so you know what to expect. Follow the full recipe card below for precise measurements and timing.
- Preheat the oven to 350°F (175°C) and lightly grease or line a 9×13-inch baking pan.
- Combine dry ingredients in a large bowl, then add eggs, browned butter, vanilla, and mix until evenly combined.
- Fold in chocolate chips—both milk and semi-sweet—to distribute chocolate throughout the batter.
- Spread into the pan and press gently so the top is even.
- Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with moist crumbs. The bars may appear slightly underbaked—that’s okay for gooey centers.
- Cool before slicing to get clean edges; allow them to set at room temperature for best results.
Chocolate Chocolate Chip Cookie Recipe
Recipe FAQ
Store the bars in an airtight container at room temperature for 3–4 days. For longer storage, wrap them tightly and freeze for up to 2 months. Thaw at room temperature before serving.
Yes. They’re excellent made the day before—flavors mingle and the texture evens out, often improving overnight.
Regular rolled oats are preferred because they keep the texture chewier. Quick oats will yield a denser, slightly crumblier bar.
Absolutely. Use all milk, all semi-sweet, dark chocolate, or white chocolate. You can also add chopped nuts, dried fruit, or swirl in peanut butter for variety.
Almond Delights Cookie Bar
More Cookies & Cake Recipes
- Oatmeal Caramel Chocolate Cookie Bar
- Chocolate Oatmeal Cookie Bars
- Browned Butter Soft Ginger Cookies
- Homemade Hostess Cupcakes
- Banana Coffee Cake
- Traeger Apple Cake
- Checkerboard Marble Cake
Pin this recipe for later and keep a copy of the ingredient list handy for easy meal planning. These bars are a dependable, crowd-pleasing dessert that travels well and pairs beautifully with coffee, milk, or a scoop of vanilla ice cream.
Chewy Chocolate Oatmeal Bars
These chocolate oatmeal cookie bars are quick to mix, packed with chocolate chips, and finished with a hint of cinnamon for warmth.
15 minutes
25 minutes
40 minutes
Ingredients
- 2 ½ cups rolled oats (NOT quick cooking)
- 2 cups all-purpose flour
- 1 ½ cups dark brown sugar
- 1 teaspoon baking soda
- 1 teaspoon salt
- 1 tablespoon vanilla
- 2 whole eggs + 1 egg yolk
- 1 ¼ cups browned butter, cooled
- 1 cup milk chocolate chips
- 1 cup semi-sweet chocolate chips
- ½ teaspoon cinnamon
Instructions
- Preheat the oven to 350°F (175°C).
- In a large bowl, mix all ingredients except the chocolate chips until well combined.
- Stir in both milk and semi-sweet chocolate chips until evenly distributed.
- Spread the mixture into a lightly greased 9×13-inch pan, smoothing the top with a spatula.
- Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with moist crumbs.
- Allow to cool before slicing so each bar holds its shape while still remaining soft and gooey inside.
Nutrition Information:
Yield: 12
Serving Size: 1
Amount Per Serving:
Calories: 713
Total Fat: 35g
Saturated Fat: 21g
Unsaturated Fat: 13g
Cholesterol: 76mg
Sodium: 510mg
Carbohydrates: 94g
Fiber: 4g
Sugar: 53g
Protein: 9g
Nutrition data is an estimate. If you need precise values for medical reasons, consult a trusted nutritional resource.
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