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Fudgy KitKat Brownies

Fudgy KitKat Brownies – Deliciously thick and fudgy chocolate brownies that are stuffed with whole KitKats, and generously topped with broken KitKats!

Fudgy KitKat Brownies

Fudgy KitKat Brownies

These Fudgy KitKat Brownies are just AMAZING.

They’re super thick and fudgy, they’re rich in flavour, and they are loaded with whole KitKat bars.

These are seriously the ultimate KitKat brownies, and you are gonna absolutely love them!

Looking for more delicious brownie recipes? Check out my Nutella Brownies, Nutty Caramel Brownies, and my Fudgy Oreo Brownies.

Fudgy KitKat Brownies
Fudgy KitKat Brownies

Ingredients you’ll need

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

  • Unsalted butter
  • Granulated sugar
  • Cocoa powder: I use and love Dr. Oetker Fine Dark Cocoa Powder.
  • Salt
  • Large eggs: You’ll need 2, cold, straight from the fridge.
  • Vanilla extract
  • Plain/all-purpose flour: You only need 1/2 cup (60g) of flour. Using a small amount of flour is what makes for extra fudgy brownies.
  • Chocolate chips: You can use milk, dark, or semi-sweet.
  • KitKat bars: You’ll need 16 2-finger bars, or 8 4-finger bars.

How to make Fudgy KitKat Brownies

To make these KitKat brownies, simply start by placing the butter, sugar, cocoa powder, and salt into a microwave-safe bowl, and heating for 1 minute.

Stir well, then microwave for another minute. The mixture should very warm/hot to the touch.

Add the eggs and vanilla, and mix well until combined.

Fold in the flour until fully combined, then gently fold in the chocolate chips, making sure not to let them all melt into the very warm batter.

Spoon half of the batter into an 8×8-inch square baking pan lined with foil or parchment paper.

Place the whole KitKat bars on top, then spoon the rest of the batter over the KitKats, and spread out evenly.

Sprinkle with the crushed KitKat bars.

Bake for 35 – 40 minutes, or until the centre is no longer jiggly and a toothpick inserted comes out almost clean.

Allow to cool completely in the pan on a wire rack before cutting into bars.

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.

Fudgy KitKat Brownies
Fudgy KitKat Brownies

These Fudgy KitKat Brownies are:

  • super quick and easy to make
  • incredibly thick and fudgy
  • infused with vanilla
  • stuffed full of whole KitKat bars
  • topped with crushed KitKats

How long will these brownies last? These brownies will stay fresh, stored in an airtight container, at room temperature or in the fridge for up to 1 week.

Can I freeze these KitKat brownies? Yep. They also freeze well for up to 3 months. Thaw overnight in the fridge before serving. If desired, allow to come to room temperature.

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!

Fudgy KitKat Brownies
Fudgy KitKat Brownies

Try these stuffed treats next!

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Fudgy KitKat Brownies

Fudgy KitKat Brownies

Yield: 16 brownies
Prep Time: 20 minutes
Cook Time: 35 minutes
Total Time: 55 minutes

Deliciously thick and fudgy chocolate brownies that are stuffed with whole KitKats, and generously topped with broken KitKats!

Ingredients

  • 1 and 1/4 sticks (140g) unsalted butter
  • 1 and 1/2 cups (300g) granulated sugar
  • 3/4 cup (75g) cocoa powder
  • 1/4 teaspoon salt
  • 2 large eggs, cold
  • 2 teaspoons vanilla extract
  • 1/2 cup (60g) plain/all-purpose flour
  • 1/2 cup (90g) chocolate chips
  • 16 2-finger KitKat bars (or 8 4-finger bars), 4 bars crushed, 12 left whole

Instructions

  1. Preheat the oven to 180C/350F/Gas 4. Line an 8x8-inch square baking pan with foil or parchment paper, and set aside.
  2. Place the butter, sugar, cocoa powder, and salt into a microwave-safe bowl, and heat for 1 minute. Stir well, then microwave for another minute. The mixture should very warm to the touch.
  3. Add the eggs and vanilla, and mix well until combined. Fold in the flour until fully combined, then gently fold in the chocolate chips. Be sure not to let them ALL melt into the warm batter.
  4. Spoon half of the batter into the prepared pan. Place the whole KitKat bars on top, then spoon the remaining batter over the KitKats, spreading out evenly. Sprinkle with the crushed KitKat bars.
  5. Bake for 35 - 40 minutes, or until the centre is no longer jiggly and a toothpick inserted comes out almost clean.
  6. Allow to cool completely in the pan on a wire rack before cutting into squares.

Notes

Brownies 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 brownies Serving Size: 1 brownie
Amount Per Serving: Calories: 275Total Fat: 12gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 32mgSodium: 65mgCarbohydrates: 38gFiber: 2gSugar: 25gProtein: 5g

Nutrition information isn’t always accurate.

Did you make this recipe?

Tag @MarshasBakeBlog on Instagram and hashtag it #marshasbakingaddiction

Susan Lavelle

Wednesday 24th of February 2021

Hi Marsha! My tin is 8x12 so I didn't feel like I had enough mixture and doubled it. After 45 mins the outside was quite overdone and the middle is pretty raw.... any tips?

Marsha

Wednesday 24th of February 2021

As long as the centre is no longer jiggly, the brownies will firm up as the cool down completely. If not, I suggest covering the pan loosely with foil and bake until the centre is no longer jiggly.

Sophie

Wednesday 13th of May 2020

The fact that this has no comments on it is mind blowing! These brownies are DELICIOUS!! I like to use sea salt, really creamy butter and unbleached flour. They are so dense and delicious and the kit kat bars provide a nice crunch in the center.

Marsha

Wednesday 13th of May 2020

I'm so glad you enjoyed them! They are a favourite in my house :)

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