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Our favorite Oatmeal Chocolate Chip Bars are thick, chewy, and so easy to make! They're perfect for a crowd and are easy to transport in a 9×13 pan.
Oatmeal Cookie Bars Mean Business!
I don't know anyone who has tried these Oatmeal Chocolate Chip Cookie Bars and not immediately fell in love. They're so easy to make and I love the chewy texture from the oats. We don't skimp on the chocolate either.
Make sure to try my other cookie bar recipes, like Sugar Cookie Bars, Peanut Butter Bars, Snickerdoodle Bars, Butterscotch Blondies, and S'mores Bars.
How to make Oatmeal Chocolate Chip Cookie Bars:
Make Cookie Dough: With a hand mixer or stand mixer, beat together the butter, brown sugar, and white sugar until smooth and light. Mix in eggs, one at a time, then add vanilla. In a separate bowl, combine the salt, baking soda, baking powder, flour, rolled oats, and 1 cup chocolate chips. Pour the dry ingredients into the wet ingredients and stir until combined. Add remaining chocolate chips.
Bake: Press cookie dough into greased pan with parchment paper then bake at 350°F (180°C) for 25-30 minutes, or until golden brown. Let it cool completely before cutting and serving with a cut and serve turner.
Oatmeal Chocolate Chip Cookie Bars
Equipment
- Stand Mixer , optional
Ingredients
- 1 cup butter, (227g), room temperature
- 1 cup light brown sugar, (220g), packed
- 1/2 cup granulated sugar, (100g)
- 2 large eggs
- 2 teaspoons vanilla extract
- 1/2 teaspoon salt
- 1 teaspoon baking soda
- 1 teaspoon baking powder
- 1 1/2 cups all-purpose flour, (188g)
- 2 cups old-fashioned rolled oats, (170g)
- 2 cups chocolate chips, (340g) semi-sweet, milk chocolate, or a little of both!
Instructions
- Preheat oven to 350°F (180°C). Lightly grease a 9 x 13 inch pan with cooking spray or line with parchment paper.
- Beat Butter and Sugar: In a large mixing bowl beat together the butter, brown sugar, and granulated sugar until smooth and light.1 cup butter, 1 cup light brown sugar, ½ cup granulated sugar
- Add the eggs one at a time, mixing after each addition. Add the vanilla.2 large eggs, 2 teaspoons vanilla extract
- Mix Dry Ingredients: In a separate bowl combine the dry ingredients: salt, baking soda, baking powder, flour and rolled oats.½ teaspoon salt, 1 teaspoon baking soda, 1 teaspoon baking powder, 1 ½ cups all-purpose flour, 2 cups old-fashioned rolled oats
- Combine: Add dry ingredients to the creamed mixture and stir until combined. Stir in chocolate chips.2 cups chocolate chips
- Bake: Press into prepared pan and bake for 25 to 30 minutes or until golden brown. Allow to cool completely before cutting.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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I originally shared this recipe February 2016. Updated April 2018, May 2022 and September 2025.
Recipe adapted from All Recipes.
These are some of my favorite bars of all time. And so easy to make. I bake mine for 27 minutes. Definitely be sure to let them cool if you plan on taking them anywhere or else they won’t be set, but when it’s just me I love digging in right away.
I bet you do
One of my go to recipes for gatherings. The pan almost always comes home empty. Thank you for sharing!!
Delicious and delicate – a hit at my book club (note that I made them without the chocolate chips)
DELICIOUS!!! Spreading the dough over the chips is a bit challenging but definitely worth it! 🙂
My family loved the batch i did even with only 1/4 chocolate chips. its gooey, chewy, and just enough sweetness. Baked in a 7×11 pan. adjusted temp and cooking time.
I cooked it for 45 minutes and it was still raw. My oven temp has been tested, I followed the recipe exactly except added half a cup of walnut chips.
Super easy, followed directions, in the oven now, I think next time I’d add raisins
Can I used quick oats or do I need to use old fashioned rolled oats?
Quick oats would work fine 🙂
Coworkers loved them. I think next time I will mix in different types of chips as well. Butterscotch, peanut butter or white chocolate chips would all work well in this recipe.
Question from a beginner baker!
What might make the cookies have the bitter taste..?
They still taste wonderful but trying to learn what I might have done wrong to do better next time!
Asking for a friend,
Possibly a rancid/expired ingredient, or did you double check your measurements of baking powder and baking soda? It only calls for a teaspoon of each, accidentally adding a tablespoon instead might make it taste bitter. I misread a recipe and did that once with sugar cookies.
Also, I find I’m sensitive to the metallic/bitter taste of some kinds of baking powder. The aluminum-free ones (like Rumford) I can’t taste in the final product.
I think adding too much baking powder and/or baking soda could make it bitter. Maybe you misread the recipe to say tablespoon instead of teaspoon? Don’t feel bad though, that’s an easy mistake a lot of people make!
Really good and easy. I have been asked for the recipe several times.
So easy! I only used 1/4 cup granulated sugar. I had lots of dried cranberries that I soaked in hot water about 15 min to soften. Just barely cover with water and drain very well. Add in with oatmeal and candy bar pieces. Cut up mr goodbar, crispy crackle mini bars. Mmm!