You’re going to love these buttery and chewy oatmeal cookie bars with a thick af fudge filling. These oatmeal fudge bars are the chocolate oatmeal bars of your dreams.

chocolate oatmeal fudge cookie bars with a thick fudge filling

Oatmeal Fudge Bars

I know people are really into peanut butter and chocolate (and believe me, I am also into this. like REALLY into it), personally I feel chocolate’s real soulmate is oatmeal. And after taking a bite of these chocolate oatmeal bars with a thick fudge ripple, you’ll have to agree. The combination of the buttery, toasty, hearty oatmeal cookie and rich, creamy fudge is the type of flavor combo that leaves you thinking about these oatmeal cookie bars anytime you have a hankering for anything sweet.

oatmeal fudge cookie bars in a stack

What ingredients do you need for chocolate oatmeal bars?

Most of the ingredients in these oatmeal fudge bars are pantry staples you probably already have on hand! If you don’t have something on hand, you can always swap out for what you do! Check out all our favorite baking substitutions here!

  • Butter
  • Brown Sugar
  • White Sugar
  • Eggs
  • Vanilla Extract
  • Baking Powder
  • Baking Soda
  • All Purpose Flour
  • Old Fashioned Oats
  • Sweetened Condensed Milk
  • Chocolate Chips

chocolate oatmeal bars cut into squares

Tips for the best Oatmeal Fudge Cookie Bars

These easy oatmeal cookie bars are pretty straight forward to make, so I don’t anticipate you having any problems. You make a basic oatmeal cookie dough and a quick, no candy thermometer homemade fudge. Follow these 3 simple steps for the best oatmeal cookie bars!

  • Line the pan with parchment paper: Our favorite way to line pans is ALWAYS with parchment paper. It provides a clean, even, stick free surface every time! We absolutely love using these precut sheets to save time.
  • Only stir the fudge in one direction: To prevent your fudge layer from splitting, try to only stir the fudge in one direction. This will keep your fudge glossy and thick instead of oily!
  • Don’t over bake the chocolate oatmeal bars: The number one rule in cookie bar baking is don’t over bake your bars. You want a crisp and crunchy exterior and an ooey, gooey, chewy center.

chocolate oatmeal bars

How to store chocolate oatmeal bars?

One of the best things about these oatmeal cookie bars is that they keep very well! You can store them in an air tight container for up to a week or in the freezer for up to 3 months. These bars freeze super well because of their moist and fudgy texture. They taste delicious straight from the freezer, so I love whipping up a double batch in a 9 x 13″ pan and freezing half for sneaking midnight snacks over the next month.

Happy oatmeal fudge bar eating, babies. What else is there to do right now anyways other than bake and eat delicious treats? Who’s with me?


Oatmeal Fudge Bars

oatmeal fudge cookie bars in a stack

Chewy and fudgy, you’ll love these oatmeal fudge bars with a thick af fudge filling.

  • Author: Sofi | Broma Bakery
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes
  • Yield: 16 servings 1x
  • Category: dessert
  • Method: oven
  • Cuisine: american


  • 1/2 cup unsalted butter, room temperature
  • 1/2 cup granulated sugar
  • 1/4 cup brown sugar, packed
  • 2 teaspoons vanilla extract
  • 1 egg, room temperature
  • 1 cup old fashioned oats
  • 1 cup all purpose flour
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon baking powder
  • 3/4 teaspoon salt

for the fudge layer

  • 1/2 cup (half a 14 ounce can of sweetened condensed milk)
  • 1/2 cup semisweet chocolate chips
  • 1 Tablespoons unsalted butter
  • 1/4 teaspoon salt
  • 1 teaspoon vanilla extract


  1. Preheat the oven to 350Ā°F and line an 8×8″ square pan with parchment paper on all sides. Set aside.
  2. In a stand mixer fit with paddle attachment, beat the butter and sugars together until light and fluffy, about 2 minutes. Scrape down the bowl and add the vanilla extract and eggs, mixing until completely combined.
  3. In a separate bowl, combine the oats, flour, baking soda, baking powder, and salt and mix well. Add the dry ingredients to the wet and mix until combined.
  4. Scrape down the bowl and divide the oatmeal cookie dough in half. Press half of the dough into an even layer into your prepared pan and set the other.
  5. Make the fudge layer. In a saucepan over medium heat, stir together the sweetened condensed milk, chocolate chips and butter. Whisk together until completely smooth. Take off the heat and stir in the salt and vanilla extract. The mixture will be glossy and thick.
  6. Spread the fudge mixture over the oatmeal cookie layer using an offset spatula or a spoon. Crumble the remain cookie dough over the fudge mixture, leaving some areas of fudge uncovered.
  7. Bake for 20 to 30 minutes or until the oatmeal bars are light golden brown. Allow to cool completely before slicing into 16 bars and serving.


If you want to whip up a big batch, simply double the recipe and bake in a 9 x 13 pan for 30 minutes!

Keywords: chocolate oatmeal bars, oatmeal fudge bars



I will make a double batch for my 9×13 pan ! I will also use dark chocolate chips! Great recipe!

Kelcy B.

Is it half a cup or half a can of sweetened condensed milk?

Sofi | Broma Bakery

Hi Kelcy! Both! A can has about 1 full cup in it, so it’s about 1/2 cup!

Carlos E LLanso

Why have I never had these?

Sofi | Broma Bakery

They were created during your healthy eating. Let me know when you want one hehe


I am trying to accommodate an egg allergy. Think egg replacer would work for the one egg?

Sofi | Broma Bakery

We’ve never tried it but I think it would!


I made these! Oatmeal adds great texture. The fudge layer mixed in so it came out marbled, rather than a stripe. I tried to let it cool before adding because I thought this might happen — any advice?


Do you think using coconut sugar in place of the brown and white sugar would work?

Sofi | Broma Bakery

Hi Lisa! I do! It might taste a little coconutty but still delicious šŸ™‚


Anyway I can substitute condensed milk for something else? I can’t find it here right now unfortunately.

Sofi | Broma Bakery

Hi Sara! Unfortunately I’ve never tried to sub it out! I know you can make your own by cooking down milk and sweetening it. You could also always switch up the fudge, and make a chocolate ganache with chocolate chips and cream (I’d probably do 2 cups of chocolate milk + 1/2 cup of cream, but have never tried it for this exact recipe so I can’t be sure). OR you can omit the fudge layer altogether and just fold chocolate chips into the batter. They’re still delicious šŸ™‚


I have made dairy free magic bar recipe that has you cook down a can of coconut milk with 1/3 cup of honey instead of using sweetened condensed ed milk.

Sofi | Broma Bakery

Oh that’s great to know! Thank you for sharing!


By mistake I used whole can of condensed milk…… they turned out great…..even more decadent!

Sofi | Broma Bakery

Happy to hear that that works too haha! So happy you liked these šŸ™‚


Is it one egg or two? The ingredients say one but the directions say add the “eggs.” Thanks for clarifying. I borrowed the condensed milk from a friend just so I can make these – and of course, will share with her. šŸ™‚

Sofi | Broma Bakery

Just one! Sorry about the confusion!

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