Thick and chewy Oatmeal Cookie Bars are a great treat for a crowd, potlucks and parties. They have the flavor you love from a great oatmeal chocolate chip cookie, baked into easy and delicious bars! 

Love brownies and cookie bar recipes? Try my Blondies, Snickerdoodle Bars, or Mississippi Mud Brownies!

Oatmeal Chocolate Chip Cookie Bars on a plate.

Weekends are my weakness when it comes to sweets. I usually go for cookies or bars of some sort because I can always count on having the ingredients on hand.

These Oatmeal Chocolate Chip Cookie Bars are a regular, sweet-tooth-satisfying weekend treat at our house!. Chewy, chocolate and oat goodness in every single bite!

Beat butter and sugars: In a large mixing bowl beat together the butter, brown sugar, and white sugar until smooth and light.

Add eggs: one at a time, mixing after each addition. Add the vanilla.

Mix dry ingredients: In a separate bowl combine the dry ingredients: salt, baking soda, baking powder, flour, rolled oats, and 1 cup chocolate chips.

Combine: Add dry ingredients to the butter mixture and stir until combined. Add chocolate chips.

Three process photos for making oatmeal cookie bar dough.

Press into greased pan.

A 9x13 inch pan with oatmeal cookie bar dough in it, ready to bake.

Bake for 25 to 30 minutes or until golden brown. Allow to cool completely before cutting.

Baked Oatmeal Chocolate Chip Cookie Bars cut into squares.

Storing and Freezing Instructions:

Storing instructions: Store covered at room temperature for 5 days or store in the fridge for 7-10 days.

Freezing Instructions: For best results, allow pan to cool completely. If you used parchment under the bars, lift the cooled bars out of the pan. Wrap the whole bar brick in plastic wrap and then aluminum foil. Freeze for up to one month. Thaw completely in the fridge before cutting into bars.

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Recipe

Oatmeal Chocolate Chip Cookie Bars on a plate.
Prep 15 minutes
Cook 30 minutes
Total 45 minutes
Save Recipe

Ingredients
  

Instructions
 

  • Preheat oven to 350 degrees F. Lightly grease a 9 x 13 inch pan with cooking spray or line with parchment paper.
  • In a large mixing bowl beat together the butter, brown sugar, and white sugar until smooth and light.
  • Add the eggs one at a time, mixing after each addition. Add the vanilla.
  • In a separate bowl combine the dry ingredients: salt, baking soda, baking powder, flour and rolled oats.
  • Add dry ingredients to the creamed mixture and stir until combined. Stir in chocolate chips.
  • Press into prepared pan and bake for 25 to 30 minutes or until golden brown. Allow to cool completely before cutting.

Notes

To freeze: Allow the cookie bars to cool completely and cut into squares. Place squares in a freezer-safe container or ziplock bag. Freeze for up to 3 months.

Nutrition

Calories: 254kcalCarbohydrates: 34gProtein: 2gFat: 12gSaturated Fat: 7gCholesterol: 36mgSodium: 180mgPotassium: 69mgFiber: 1gSugar: 22gVitamin A: 290IUVitamin C: 0.1mgCalcium: 41mgIron: 1mg

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I originally shared this recipe February 2016. Updated April 2018 and May 2022. Recipe adapted from All Recipes.

This post contains affiliate links.

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Lauren Allen

Welcome! I’m Lauren, a mom of four and lover of good food. Here you’ll find easy recipes and weeknight meal ideas made with real ingredients, with step-by-step photos and videos.

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4.92 from 1374 votes (1,175 ratings without comment)
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Mercedes
10 days ago

5 stars
I substituted in coconut margarine and dark brown sugar. I also decreased the chocolate chips by a half cup, but added walnuts and dried cranberries. The end result was crispy on the outside and chewy on the inside.

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Channy
11 days ago

Could I make this without the flour, just the oats?

Admin
5 days ago
Reply to  Channy

We haven’t tried it without flour but the consistency won’t be the same and it won’t bake the same way.

Chris
1 month ago

4 stars
Loved this recipe! We used 1 cup of mini chocolate chips and 1 cup is sweetened coconut instead of 2 cups of chips. We also used 1 tsp vanilla and 1 tsp almond extract. Delicious!!

COLLEEN
2 months ago

1 star
Awful, way to buttery and too flat, Don’t waste your time or ingredients.

Yum
2 months ago

5 stars
Yum

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