Kit Kat Cookies
These Kit Kat Cookies are a delightful treat that combines the rich flavors of chocolate with the crunch of your favorite candy bars. Perfect for any occasion, from casual gatherings to holiday celebrations, these cookies boast a soft and chewy center with slightly crunchy edges. The addition of chopped Kit Kat bars creates a unique texture and flavor that is sure to please cookie lovers everywhere.
Why You’ll Love This Recipe
- Decadent Flavor: The combination of chocolate and Kit Kat pieces delivers an irresistible taste that chocolate lovers will adore.
- Easy to Make: With simple steps and readily available ingredients, you’ll whip up a batch of these cookies in no time.
- Perfect for Any Occasion: Whether it’s a birthday party or just an afternoon snack, these cookies fit right in.
- Versatile Treat: Use up leftover Halloween candy or impress your friends with a delicious homemade gift.
- Soft and Chewy: Enjoy cookies that are soft in the center with just the right amount of crunch on the edges.
Tools and Preparation
Before you dive into baking these Kit Kat Cookies, gather your tools to make the process smooth and enjoyable.
Essential Tools and Equipment
- Stand mixer
- Mixing bowls
- Measuring cups and spoons
- Parchment paper
- Baking sheets
- Rubber spatula
Importance of Each Tool
- Stand mixer: This tool makes creaming butter and sugars easy, ensuring a fluffy cookie base.
- Parchment paper: Prevents cookies from sticking to the baking sheets, making cleanup effortless.
- Rubber spatula: Perfect for folding in ingredients gently without overmixing the dough.

Ingredients
To make these delicious Kit Kat Cookies, you’ll need:
For the Cookie Dough
- 250g unsalted butter, at room temperature
- 200g granulated sugar
- 120g light or dark brown sugar
- 1 egg, at room temperature
- 1 egg yolk, at room temperature
- 1 tsp vanilla extract
- 200g All-Purpose Flour, sifted
- 80g Cocoa, sifted
- 1 tsp kosher salt
- 1/2 tsp baking powder
- 1/2 tsp baking soda
For the Mix-ins
- 300g Kit Kats, coarsely chopped, plus extra for the tops (optional)
- 150g chopped chocolate (dark recommended)
How to Make Kit Kat Cookies
Step 1: Preheat the Oven
Preheat your oven to 350°F (180°C). Line 2–3 baking sheets with parchment paper to prepare for baking.
Step 2: Cream Butter and Sugars
In the bowl of your stand mixer fitted with the paddle attachment:
1. Combine unsalted butter, granulated sugar, and brown sugar.
2. Beat together until light and fluffy (about 2–3 minutes).
Step 3: Add Eggs and Vanilla
Add:
* The whole egg
* The additional egg yolk
* The vanilla extract
Mix until well combined, scraping down the sides as needed.
Step 4: Incorporate Dry Ingredients
Add in:
* The sifted All-Purpose Flour
* The sifted Cocoa
* The kosher salt
* The baking powder
* The baking soda
Mix until just combined; avoid overmixing.
Step 5: Fold in Chocolate
Gently fold in:
* The chopped Kit Kats
* The chopped chocolate
Use a rubber spatula to ensure everything is evenly mixed.
Step 6: Scoop Dough
Using a 1/4 cup cookie scoop, portion out balls of dough onto your prepared baking sheets. Leave enough space between each ball for spreading – about six per half sheet.
Step 7: Add Toppings
Press additional chopped Kit Kat onto the tops of each cookie dough ball for extra flair.
Step 8: Bake
Place cookies in the preheated oven and bake for 15–16 minutes until they’re slightly set around the edges.
Step 9: Cool Down
Remove from oven. If needed, scoot them into shape while warm. Let them cool on pans for 15–20 minutes before transferring to a wire rack to cool completely.
Step 10: Store Leftovers
Store any leftovers in an airtight container at room temperature for up to a week. Enjoy your delicious homemade Kit Kat Cookies!
How to Serve Kit Kat Cookies
Kit Kat Cookies are deliciously versatile and can be enjoyed in various ways. Whether you serve them as a dessert or a snack, these cookies are sure to impress everyone.
With Milk
- A classic combination that never fails. The richness of the chocolate pairs perfectly with a cold glass of milk.
A La Mode
- Top these cookies with a scoop of vanilla ice cream for a delightful dessert that combines warm and cold flavors.
Cookie Sandwiches
- Create cookie sandwiches by placing your favorite frosting or whipped cream between two Kit Kat Cookies for an indulgent treat.
With Fresh Fruit
- Serve alongside fresh fruit like strawberries or bananas for a balanced treat that adds a refreshing twist.
As Party Favors
- Package individual Kit Kat Cookies in decorative bags for a fun party favor that guests will love to take home.
How to Perfect Kit Kat Cookies
Perfecting your Kit Kat Cookies is all about attention to detail. Follow these tips to elevate your cookie game.
-
Use Room Temperature Ingredients: Ensure butter, egg, and egg yolk are at room temperature for better mixing and texture.
-
Don’t Overmix the Dough: Mix until just combined to keep your cookies soft and chewy.
-
Chill the Dough: For thicker cookies, chill the dough for at least 30 minutes before baking.
-
Adjust Baking Time: Keep an eye on the cookies; remove them when they are slightly underbaked for that perfect chewy center.
-
Use Quality Chocolate: Opt for high-quality chocolate chunks to enhance the flavor profile of your Kit Kat Cookies.
Best Side Dishes for Kit Kat Cookies
Pairing side dishes with your Kit Kat Cookies can create a more enjoyable experience. Here are some great options to consider.
- Fruit Salad: A mix of seasonal fruits adds freshness and balances the sweetness of the cookies.
- Yogurt Parfait: Layer yogurt with granola and berries for a creamy and crunchy side that complements the cookies.
- Chocolate Fondue: Dip fruit or marshmallows into warm chocolate fondue alongside the cookies for extra indulgence.
- Cheese Platter: A selection of cheeses can provide savory contrast and enhance the overall flavor experience.
- Ice Cream Sundae Bar: Set up a sundae bar where guests can add toppings to their ice cream while enjoying Kit Kat Cookies.
- Hot Cocoa: A warm cup of hot cocoa pairs beautifully, especially during colder months, making it a cozy treat alongside the cookies.
Common Mistakes to Avoid
Making delicious Kit Kat Cookies can be a fun experience, but there are some common mistakes that can ruin your batch. Here are a few to watch out for:
- Ignoring room temperature ingredients: Using cold butter or eggs affects the texture. Let them sit out until they reach room temperature for the best results.
- Overmixing the dough: Mixing too much can make cookies tough. Combine the ingredients just until incorporated for soft and chewy cookies.
- Not measuring accurately: Incorrect measurements can lead to undesired textures. Use a kitchen scale or measuring cups to ensure accuracy.
- Skipping chilling time: Skipping this step may result in flat cookies. Chill the dough for at least 30 minutes before baking for better shape and flavor.
- Baking on unlined sheets: Baking directly on ungreased sheets can cause sticking and uneven baking. Always use parchment paper to prevent this.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Place parchment paper between layers if stacking to prevent sticking.
Freezing Kit Kat Cookies
- Freeze in an airtight container or freezer bag for up to 3 months.
- Separate layers with parchment paper to avoid sticking.
Reheating Kit Kat Cookies
- Oven: Preheat to 350°F (175°C) and warm cookies for about 5-10 minutes for that fresh-baked taste.
- Microwave: Heat individually on medium power for about 10-15 seconds, checking frequently.
- Stovetop: Use a skillet over low heat, cover with a lid, and warm for around 1-2 minutes.
Frequently Asked Questions
Here are some frequently asked questions about making Kit Kat Cookies:
What are Kit Kat Cookies?
Kit Kat Cookies are delightful treats made with chocolate chip cookie dough mixed with chopped Kit Kat bars, resulting in a chewy and crunchy texture.
Can I customize my Kit Kat Cookies?
Absolutely! You can add nuts, swap different chocolate types, or incorporate other candy bars to tailor these cookies to your taste.
How do I know when my Kit Kat Cookies are done?
Look for slightly set edges while the center remains soft. The cookies will continue to firm up as they cool on the baking sheet.
Can I make these cookies gluten-free?
Yes! Substitute all-purpose flour with a gluten-free flour blend for a gluten-free version of these tasty cookies.
Why did my Kit Kat Cookies turn out flat?
Flat cookies can result from warm dough or not enough flour. Chill the dough before baking and ensure accurate measurements.
Final Thoughts
These Kit Kat Cookies are not only delicious but also versatile. You can customize them with your favorite mix-ins or adjust the chocolate levels according to your preference. Give this recipe a try; it’s perfect for using leftover Halloween candy!
Kit Kat Cookies
Indulge in the delightful experience of baking Kit Kat Cookies, a perfect fusion of soft, chewy cookie dough and crunchy chocolate bars. These cookies offer a heavenly combination of flavors and textures that will satisfy any sweet tooth. With simple ingredients and straightforward steps, you can whip up a batch in no time—ideal for any occasion, from casual snacks to festive celebrations. Whether you enjoy them with a glass of milk or as part of a dessert spread, these Kit Kat Cookies are sure to impress friends and family alike.
- Prep Time: 15 minutes
- Cook Time: 16 minutes
- Total Time: 31 minutes
- Yield: Approximately 24 cookies 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 250g unsalted butter, at room temperature
- 200g granulated sugar
- 120g light or dark brown sugar
- 1 egg, at room temperature
- 1 egg yolk, at room temperature
- 1 tsp vanilla extract
- 200g All-Purpose Flour, sifted
- 80g Cocoa, sifted
- 1 tsp kosher salt
- 1/2 tsp baking powder
- 1/2 tsp baking soda
- 300g Kit Kats, coarsely chopped, plus extra for the tops (optional)
- 150g chopped chocolate (dark recommended)
Instructions
- Preheat your oven to 350°F (180°C) and line baking sheets with parchment paper.
- In a stand mixer bowl, cream together the butter and sugars until light and fluffy.
- Add the whole egg, egg yolk, and vanilla extract; mix until well combined.
- Gradually incorporate the sifted flour, cocoa powder, salt, baking powder, and baking soda; mix until just combined.
- Gently fold in the chopped Kit Kats and chocolate using a rubber spatula.
- Scoop dough into balls onto prepared baking sheets, leaving space for spreading.
- Press extra Kit Kat pieces on top if desired.
- Bake for 15–16 minutes until edges are set but centers remain soft.
- Cool on pans for about 20 minutes before transferring to a wire rack.
Nutrition
- Serving Size: 1 cookie (45g)
- Calories: 210
- Sugar: 15g
- Sodium: 120mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 30mg
