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Fudge Stuffed Chocolate Chip Cookie Bars

Fudge Stuffed Chocolate Chip Cookie Bars – Deliciously thick and chewy chocolate chip cookie bars stuffed with a creamy chocolate fudge centre. These bars take cookies to a whole new level!

A sideview of Fudge Stuffed Chocolate Chip Cookie Bars stacked on top of each other.

Take my favourite chocolate chip cookies and my easy chocolate fudge, combine them together, and you have these incredibly delicious chocolate chip cookie bars stuffed with chocolate fudge – perfection! 

These Fudge Stuffed Chocolate Chip Cookie Bars are so thick, chewy, and crispy, while the centre is a soft and creamy fudge.

They pair so wonderfully together – you’re gonna love them, and will want to share them with everyone! Or not. 😉

Looking for more stuffed desserts? Check out my Nutella Stuffed Chocolate Chip Cookies, Cheesecake Stuffed Chocolate Banana Bread, and my Cheesecake Swirl Carrot Bundt Cake.

A close-up of a small stack of Fudge Stuffed Chocolate Chip Cookie Bars.
A stack of Fudge Stuffed Chocolate Chip Cookie Bars.

Ingredients you’ll need

Here’s a list of ingredients you’ll need to make these bars. You can find my recipe card at the bottom of this post for the complete list with their amounts.

For the cookie dough:

  • Plain/all-purpose flour
  • Baking powder
  • Baking soda
  • Salt
  • Unsalted butter
  • Light brown sugar
  • Caster/granulated sugar
  • Large egg
  • Vanilla extract
  • Chocolate chips

For the chocolate fudge centre:

  • Chocolate: You can use milk, dark, or semi-sweet.
  • Sweetened condensed milk

How to make Fudge Stuffed Chocolate Chip Cookie Bars

To make and assemble these cookie bars, simply make the cookie dough as instructed below. Press half of the cookie dough into an 8×8-inch square baking tray lined with foil or parchment paper.

For the fudge, melt the chocolate in the microwave, then stir in the sweetened condensed milk. Pour into the pan, on top of the cookie layer, and spread out evenly. Top with the remaining cookie dough.

Bake for 25 – 30 minutes until lightly golden brown. Allow to cool completely in the pan, then refrigerate for at least 2 hours before slicing into bars.

TIP: As soon as you’ve removed the pan from the oven, place it into the freezer for 2 hours. This will speed up the cooling time, and you’ll get neat, clean slices!

The printable recipe card with the FULL list of ingredients and instructions can be found at the bottom of this post.

NOTE: For best results, I highly recommend using the gram measurements (with a digital scale), rather than the cup measurements.

Cup measurements are simply not accurate enough, and I cannot guarantee the best results if you use them.

A close-up view of a stack of Fudge Stuffed Chocolate Chip Cookie Bars.

Question: Do you prefer the soft, chewy middle slices, or do you reach for those deliciously crisp edges? ↓

A stack of Fudge Stuffed Chocolate Chip Cookie Bars with a bar leaning up against the stack.

These Fudge Stuffed Chocolate Chip Cookie Bars are:

  • deliciously thick and chewy
  • quick and easy to throw together
  • bursting with flavour
  • stuffed with a creamy chocolate fudge
  • perfect for sharing! (Only if you want to, of course) 🙂

How long will these bars last? These bars can be stored in an airtight container at room temperature or in the fridge for up to 1 week.

Can I freeze these bars? Yes, they also freeze well for up to 3 months. Thaw overnight in the fridge before serving.

If you try this recipe, let us know! Leave a comment, rate it, and don’t forget to tag me on Instagram and hashtag it #marshasbakingaddiction. I’d love to see!

A Fudge Stuffed Chocolate Chip Cookie Bar being picked up by hand from the stack.
Fudge Stuffed Chocolate Chip Cookie Bars - Deliciously thick and chewy chocolate chip cookie bars stuffed with a creamy chocolate fudge centre. These bars take cookies to a whole new level! #chocolatechipcookies #chocolate #fudge #cookiebars #recipe

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A close-up view of a stack of Fudge Stuffed Chocolate Chip Cookie Bars.

Fudge Stuffed Chocolate Chip Cookie Bars

Yield: 16 bars
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes

Deliciously thick and chewy chocolate chip cookie bars stuffed with a creamy chocolate fudge centre. These bars take cookies to a whole new level!

Ingredients

For the Cookie

  • 2 cups (250g) plain/all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup (115g) unsalted butter, melted
  • 1/2 cup (100g) light brown sugar
  • 1/4 cup (50g) caster/granulated sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 1 cup (175g) chocolate chips

For the Fudge

  • 6 oz (175g) chocolate (milk, dark, or semi-sweet), coarsely chopped
  • 1/2 can (7oz/198g) sweetened condensed milk

Instructions

For the Cookie

  1. Preheat the oven to 180C/350F/Gas 4. Line an 8x8-inch square baking pan with foil or parchment paper. Set aside.
  2. Whisk together the flour, baking powder, baking soda, and salt. Set aside.
  3. Whisk together the butter and sugars until combined. Add the egg, and vanilla, and mix until combined. Add the dry ingredients, and mix until just combined. Fold in the chocolate chips.
  4. Press half of the dough into the prepared pan.

For the Fudge

  1. Place the chocolate into a microwave-safe bowl, and heat in 30 second intervals until melted and smooth. Add the condensed milk, and whisk until combined.
  2. Spread the mixture into the prepared pan, and smooth out the top. Place the remaining cookie dough on top and sprinkle with extra chocolate chips.
  3. Bake for 25 - 30 minutes or until lightly golden brown on top. Allow to cool completely in the pan on a wire rack. Refrigerate or freeze for at least 2 hours before cutting into bars.

Notes

Bars stay fresh, stored in an airtight container, at room temperature or in the fridge for up to 1 week. They also freeze well for up to 3 months. Thaw overnight in the fridge before serving.

Nutrition Information:
Yield: 16 bars Serving Size: 1 bar
Amount Per Serving: Calories: 261Total Fat: 13gSaturated Fat: 8gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 30mgSodium: 121mgCarbohydrates: 35gFiber: 1gSugar: 21gProtein: 3g

Nutrition information isn’t always accurate.

Did you make this recipe?

Tag @MarshasBakeBlog on Instagram and hashtag it #marshasbakingaddiction

Charlotte Cee

Saturday 9th of October 2021

Will popping the tin in the freezer straight from the oven help the fudge to set? The reason I ask is that I’ve been attempting this recipe with a white chocolate fudge center but it melts into the other layers!! I’d love those three really neat, clean layers when I slice it!!

Marsha

Saturday 9th of October 2021

I usually pop them in the freezer straight away to speed up cooling time, and for beautiful, clean slices. An hour should do it.

Lynn | The Road to Honey

Saturday 11th of August 2018

oh no Marsha! I'm keeping these beauties all to myself. Loving how melty that fudgy center looks. Too irresistible to resist.

Sues

Friday 10th of August 2018

I love chocolate chip cookie bars as is, but stuffed with fudge?? omg a million times more delicious! These are awesome!!

Jenn

Friday 10th of August 2018

These are so totally luxe and I love that I have all the ingredients handy! Fabulous recipe!

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