Simple-to-make oatmeal bars with a gooey cookie butter (biscoff) and milk chocolate chip center. These cookie butter oatmeal bars are sure to be a huge hit! These bars are like the famous Carmelitas, but with COOKIE BUTTER instead! via chelseasmessyapron.com

Cookie Butter Bars start with a simple oatmeal cookie dough with a gooey cookie butter and chocolate filling.

Use leftover cookie butter in these tasty Cookie Butter Cups, Cookie Butter Meltaways, or as a delicious topping for Crepes.

Cookie Butter Bars stacked on top of each other.

These Carmelitas are one of the dessert recipes I turn to most often. They are downright delicious and always a hit wherever I take them.

One day, as I went to make them and after making the oatmeal dough, I realized I was all out of caramels. That’s when I had probably my best idea to date (not being dramatic here;) why not substitute caramel with cookie butter? Let me tell you, this combination is unbelievably good.

We pack these sweet oatmeal Cookie Butter Bars with melty milk chocolate and gooey cookie butter. They’re such a unique, rich, and totally delicious treat!

Quick Tip

Cookie butter (also called Biscoff) is a spread made from crushed cookies, usually Speculoos. It’s creamy like peanut butter, with a rich, sweet flavor.

Ingredients used in this recipe prepped out for easy assembly.

Ingredients

  • Butter: Make sure it’s softened to room temperature for easier mixing into the dough.
  • Brown sugar: Pack it firmly into the measuring cup to ensure the right amount of sweetness and moisture in the bars.
  • Vanilla: Use pure vanilla extract for the best flavor.
  • Oats: Use regular, old-fashioned oats, not quick or steel-cut.
  • Baking soda: Check if it’s still good so the bars will rise properly.
  • Salt: Use fine salt salt for even flavor distribution.
  • Flour: Measure it carefully so the bars turn out right. Don’t press down the flour in the measuring cup, and make sure it’s level on top. Too little flour can make the bars greasy, and too much can make them dry.
  • Cookie butter: Find it at Trader Joe’s or in the nut butter section.
  • Chocolate chips: Use your favorite kind! I like milk chocolate best, but some other great alternatives: white chocolate, dark chocolate, butterscotch, or semi-sweet chocolate!
     

The oat layer being mixed together and pressed into the pan.

  1. Prep: Preheat your oven and line a baking pan with parchment paper. 
  2. Make Dough: Mix melted butter, brown sugar, vanilla, oats, flour, baking soda, and salt. Make sure everything is evenly mixed. I like to use hand mixers or a stand mixer here.
  3. First Layer: Press half of the dough into the pan and bake until lightly browned. Press it down into one even layer for even baking.
  4. Add Fillings: Sprinkle chocolate chips over the base, then spread warmed cookie butter. I like to smooth it over with a spatula.
  5. Top Layer: Crumble remaining dough over the fillings. Keep the top layer loose for a light texture. 
  6. Bake Again: Bake until the top is lightly golden. Keep an eye on baking time for even cooking.
  7. Cool and Serve: Let bars cool completely before cutting into squares. Letting them cool down makes cutting them easier.

The chocolate chips and cookie butter being poured on top of the oatmeal cookie base.

  • Parchment Paper: Line the pan with parchment paper for easy removal and cleanup. This keeps the bars from sticking and makes it easy to take them out. Leave an overhang to make the bar removal even easier.
  • Even Crust: Press the oatmeal mixture evenly into the pan to make sure the bottom of the bars is the same thickness all over.
  • Cookie Butter Spreading: Use a spatula or the back of a spoon to spread the cookie butter evenly over the chocolate chips, aiming for the same thickness everywhere. Warm up the cookie butter in the microwave so it’s easier to pour.
  • Oatmeal Crumble: Sprinkle the remaining oatmeal mixture evenly over the caramel layer for a good balance of flavor in every bite.
  • Let the bars cool completely before cutting: They’re too soft and crumbly when they’re hot, but taste the best when they’re completely cooled down.

Storage

Store Cookie Butter Bars in an airtight container at room temperature for 3-4 days.

To freeze leftovers, wrap each bar individually and place them in a large zip-top bag. Thaw at room temperature; if the chocolate looks speckled, it’s just the milk solids rising to the top and is normal.

A cookie butter bar being held up showing the gooey and delicious center.

More Delicious Desserts

4.80 from 5 votes

Cookie Butter Bars

These Cookie Butter Bars start with a simple oatmeal cookie dough that is baked, then topped with chocolate chips and lots of gooey cookie butter and finished off with another layer of oatmeal cookie dough.
Prep Time: 15 minutes
Cook Time: 22 minutes
Total Time: 37 minutes
Servings: 16 bars

Ingredients 
 

  • 3/4 cup (12 tbsp) unsalted butter, at toom temp
  • 3/4 cup light brown sugar, packed
  • 1 teaspoon vanilla extract
  • 1 cup old-fashioned oats (not steel cut or quick oats!)
  • 1 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1-14 cups white flour
  • 1 cup cookie butter or Biscoff spread
  • 1 cup milk chocolate chips (or semi-sweet or dark) (Note 2)

Instructions 

  • PREP: Preheat the oven to 350 degrees F. Lightly grease and line a 9x9-inch baking pan with parchment paper, leaving an overhang for easy removal later.
  • BATTER: In a large bowl, mix together the room temp butter, brown sugar, flour, oats, baking soda, vanilla extract, and salt using electric hand mixers until a thick dough forms. Divide the mixture in half and press half of it into the prepared pan.
  • COOKIE BUTTER: Measure out 1 cup of cookie butter and place it in a microwave-safe bowl. Microwave for 15-30 seconds or until warm enough to pour.
  • BAKE BASE: Bake the base for 8 minutes, then remove from the oven. Sprinkle the chocolate chips evenly over the crust. Pour the cookie butter over the chocolate chips, using a spatula to gently smooth it into an even layer.
  • BAKE BARS AGAIN: Crumble the remaining oatmeal mixture over the caramel layer (don't press it down), then bake for another 13-18 minutes until the edges are lightly browned and the top is set.
  • LET STAND: Remove from the oven and allow to cool at room temperature for at least 1 hour before cutting into bars. These bars are best enjoyed within 2-4 days when stored in an airtight container.

Recipe Notes

Note 1: You can find Cookie Butter at Trader Joe's and Biscoff Spread at most grocery stores--look by the nut butter!
Note 2: ย I love milk chocolate chips, but if you prefer less sweetness or like dark chocolate more, go for semi-sweet or dark chocolate chips instead.

Nutrition

Serving: 1serving | Calories: 259kcal | Carbohydrates: 28g | Protein: 3g | Fat: 15g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 24mg | Sodium: 110mg | Potassium: 45mg | Fiber: 1g | Sugar: 16g | Vitamin A: 277IU | Calcium: 16mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Meet Chelsea


Hello, and welcome to Chelseaโ€™s Messy Apron! Iโ€™m Chelsea, the recipe developer, food photographer, and writer behind the site. Iโ€™m passionate about creating simple, reliable, and delicious recipes that anyone can make.

Thanks for stopping byโ€”I hope you find something delicious to make!

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4.80 from 5 votes (2 ratings without comment)

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18 Comments

  1. Mallory says:

    4 stars
    These were absolutely amazing! I couldn’t taste the cookie butter as much as I would have liked though. The calorie count is also way off. Cookie butter itself is 210 calories per 2 tablespoons so there is no way that a bar is less than that.

    1. Chelsea Lords says:

      Glad you enjoyed!! Nutrition facts are per bar! ๐Ÿ™‚

      1. Chelsea Lords says:

        Glad you enjoyed these bars! Sorry I’m not sure what you want me to check on here? The calories for the cookie butter bars are at the bottom of the recipe! ๐Ÿ™‚

  2. Stach says:

    Can you double this recipe? Thanks!

    1. chelseamessyapron says:

      Yes! I hope you enjoy! ๐Ÿ™‚

  3. Jennifer says:

    5 stars
    These were sooo good. Definitely going in my baking rotation. I am vegan so used earth balance in place of the butter. They came out a touch greasy (maybe due to the eb) so I might cut that back a bit next time. Also used butterscotch chips and pecans in place of the chocolate chips. They were really so good. I might experiment with swapping out cookie butter for peanut butter with chocolate chips for something different.

    1. chelseamessyapron says:

      So happy you enjoyed these bars Jennifer! ๐Ÿ™‚ And all your variation ideas sound AMAZING! You’ll have to let me know how you like it with peanut butter!

  4. Jean says:

    Is there a cookie butter recipe ?

    1. chelseamessyapron says:

      Hi Jean! โ€œCookie butterโ€ is found at Trader Joes otherwise the exact same product is called โ€œBiscoffโ€ and I buy mine at Wal-mart by the peanut butter and jam! I hope that helps ?

  5. Bonnie says:

    What is cookie butter spread? I have never seen it in any other recipe. Where do you find it in the store?

    Thanks!

    1. chelseamessyapron says:

      Hi Bonnie! “Cookie butter” is found at Trader Joes otherwise the exact same product is called “Biscoff” and I buy mine at Wal-mart by the peanut butter and jam! I hope that helps ๐Ÿ™‚

  6. Karly says:

    Cookie butter is so addictive! I know these bars are nine kinds of amazing.

  7. Pamela says:

    I love bars, but cookie butter layered? You stole my heart!

    1. chelseamessyapron says:

      Haha thanks Pamela! ๐Ÿ™‚

  8. Ashley says:

    Holy moly these bars!! There is so much good stuff in these I don’t even know where to begin! haha And with cookie butter …. sigh. I love that stuff.

    1. chelseamessyapron says:

      Haha definitely! Nothing like singing and baking ๐Ÿ™‚ I like cookie butter way too much haha.

  9. Dina says:

    they look yummy!

    1. chelseamessyapron says:

      Thanks Dina!