These Kit Kat Brownies are a perfect mix of soft, gooey brownies and the crunchy fun of Kit Kats. Every bite is a delightful blend of rich chocolate and a little surprise crunch. They're just right for when you want a comforting, chocolatey treat.

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Get ready to bake something amazing! This Kit Kat Brownie recipe makes brownies that are a super fun and delicious treat that everyone will love.
They're deliciously moist chocolate brownies but even better because they have Kit Kat bars inside! Imagine soft, fudgy brownies loaded with a surprise crunch in every bite - that's what these are.
This recipe is great for using up any leftover Halloween candy!
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What You'll Love About This Recipe:
- The Perfect Blend: The crunchy Kit Kats paired with the soft brownie base creates an irresistible texture.
- Easy to Make: Simple instructions make this recipe accessible to bakers of all levels.
- Customizable: Easily adaptable to include different types of chocolate bars or toppings.
- Crowd Pleaser: Loved by kids and adults alike, perfect for any gathering.
Ingredients

Unsalted Butter: Adds richness and flavor. Make sure it's unsalted to control the saltiness of your brownies.
Semi Sweet Chocolate Chips: These give the brownies a deep, chocolatey taste. You can also use dark chocolate for a less sweet option. You could also use chopped chocolate instead.
Sugar: Sweetens the brownies. White, granulated sugar works best here.
Eggs: Eggs bind the ingredients together and make the brownies moist. Room temperature eggs blend more easily.
Vanilla Extract: Adds a hint of vanilla flavor, enhancing the chocolate taste.
All-Purpose Flour: The base of your brownies. It gives them structure, so they're not too gooey.
Cocoa Powder: For that extra chocolate kick. Use a good quality, unsweetened cocoa powder for the best flavor.
Salt: Just a pinch to balance the sweetness and bring out the chocolate flavor.
Kit Kat Bars: The star of the show! They add a delightful crunch and make your brownies unique.
Equipment
- 8x8 Baking Dish: Essential for shaping the brownies. A glass or metal pan works.
- Parchment Paper: For easy removal of brownies.
- Microwave-Safe Bowl: For melting chocolate and butter.
- Whisk & Spatula: For mixing and spreading the batter.
- Sharp Knife: To chop the Kit Kats and slice the brownies.
Instructions
Oven Prep: Start by heating your oven to 350°F (175°C). This is a standard baking temperature for brownies, ensuring they cook evenly.
Prepare the Baking Dish: Take an 8x8 inch baking dish and line it with parchment paper. Let some paper hang over the edges – this acts as a handle to lift out the brownies later. This step helps in easy removal of brownies and ensures they don’t stick to the pan.
Melting the Chocolate and Butter: In a large bowl that's safe for the microwave, put the chopped butter and chocolate chips. Heat them in the microwave, using 30-second intervals. After each interval, stir the mixture. This melting method prevents the chocolate from burning and ensures a smooth mixture.

Mixing the Batter: Once melted, take the bowl out and add sugar, whisked eggs, and vanilla extract. Stir these in until they’re well combined. Slowly mix in the flour, cocoa powder, and a pinch of salt. Be careful not to overmix here – you want your brownies to be fudgy, not cakey.

Assembling with Kit Kats: Pour half of your brownie batter into the prepared baking dish, smoothing it into an even layer. This forms the base of your brownies.

Now, place a layer of Kit Kat bars on top. You might need to break some bars to fit them perfectly. This is the fun part where you get a crunchy layer in your brownies.

Drop spoonfuls of the remaining batter over the Kit Kats, then gently spread it, covering all the Kit Kats. This ensures that your Kit Kats are nestled nicely between the layers of batter.

Next, chop up the rest of the Kit Kats and sprinkle them all over the top of the brownies. This will add a yummy crunchy topping to your brownies.

Put the baking dish in your preheated oven and bake for about 25-30 minutes. You'll know they're done when the top looks set but the center is still a bit soft. It’s okay if the center wiggles a little – it will set as it cools.
Patience is key! Let the brownies cool in the pan for a while, then use the parchment paper handles to lift them out onto a rack to cool completely. This step is crucial for easy slicing and perfect texture.


And that's it. You'll have delicious homemade kit kat brownies whipped up in no time.
Want to short cut it? If you'd rather use brownie mix, you can simply whip up your favorite boxed brownie mix, then pour half into the pan. Layer with the Kit Kats the same way we did above, then bake and enjoy!
Top Tips
bursts in the microwave, stirring between each interval. This method prevents the chocolate from burning and ensures a smooth, evenly melted mixture. It's crucial for achieving the rich, chocolatey base of your brownies.
Don’t Overmix the Batter: After adding the flour, cocoa powder, and salt to the wet ingredients, mix just until everything is combined. Overmixing the batter can lead to tough, cake-like brownies instead of the desired fudgy texture. A gentle hand is key to keeping them soft and gooey.
Cool Completely Before Cutting: It might be tempting to cut into your brownies as soon as they come out of the oven, but letting them cool completely is vital. Cooling allows the brownies to set properly, ensuring they hold their shape and don’t fall apart when cut. This patience results in clean, neat slices and the best possible texture.
Substitutions
- Butter: Margarine can be used in place of butter.
- Chocolate Chips: Dark chocolate can replace semisweet chips for a less sweet option.
- Kit Kats: Experiment with different flavored Kit Kats or other chocolate bars.
Variations
- Nutty Kit Kat Brownies: Add chopped walnuts or pecans for a nutty twist.
- Caramel Kit Kat Brownies: Drizzle caramel over the top before baking for added sweetness.
- Minty Kit Kat Brownies: Use mint-flavored Kit Kats for a refreshing change.
Kit Kat Brownies
These Kit Kat brownies are where gooey meets crunchy. The soft, moist brownie base paired with the crispy Kit Kats creates a texture that's absolutely irresistible. They're a fun, tasty twist on the classic brownie that everyone will love.
Ingredients
- 1 stick of Unsalted Butter, chopped into cubes
- 6 ounces of Semisweet Chocolate Chips
- 1 cup of Sugar
- 2 Eggs, whisked
- 1 teaspoon Vanilla Extract
- ½ cup All-Purpose Flour
- ¼ cup Cocoa Powder
- ¼ teaspoon Salt
- 6-8 Kit Kat Bars (4-finger bars)
Instructions
- Preheat oven to 350°F. Line an 8x8 baking dish with parchment paper.
- Melt butter and chocolate chips in a microwave-safe bowl, stirring every 30 seconds.
- Whisk in sugar, eggs, and vanilla. Gradually add flour, cocoa powder, and salt until smooth.
- Spread half the batter in the dish. Add a layer of Kit Kats, then cover with remaining batter.
- Chop remaining Kit Kats; sprinkle on top.
- Bake for 25-30 minutes. Cool completely before slicing.
Notes
For the perfect texture, make sure to let the brownies cool completely before slicing. Complete cooling can take up to 4 hours. This patience pays off with clean, neat cuts and the best brownie texture.

Storage Instructions
At Room Temperature: Keep the brownies in an airtight container for up to 4 days. They stay fresh and delicious.
In the Fridge: You can also store them in the fridge for up to a week. Just let them come to room temperature before eating for the best texture.
Freezing: For longer storage, freeze the brownies wrapped individually in plastic wrap and then in a ziplock bag. They can last for up to 3 months in the freezer. Thaw them at room temperature or in the fridge when you're ready to eat.
Reheating (Optional): If you like your brownies warm, you can briefly microwave them. Just be careful not to overheat, as this can dry them out.
FAQ
Yes, milk chocolate can be used for a sweeter taste, but it may alter the texture slightly.
The brownies are done when the top is set and the edges start to pull away from the pan. A slight jiggle in the center is okay as they will firm up while cooling.
Yes, but adjust the baking time accordingly. A larger pan may require less baking time, and a smaller one may need more.
Parchment paper makes it easier to remove and cut the brownies, but you can also grease the pan well if you don’t have parchment paper.
Yes, feel free to add nuts like walnuts or pecans for added texture and flavor.

















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