After a long day, there’s something soothing about creating a simple treat in the kitchen. This recipe brings together the delightful crunch of Kit Kats and the rich depths of chocolate, making it perfect for sharing with family during gatherings or enjoying during quiet moments at home. The process embraces the comforting rhythm of baking, allowing you to unwind while preparing a batch of cookies that are as enjoyable to make as they are to eat. Let’s dive into this easy recipe.
Why You’ll Love This Kit Kat Cookies with Chocolate Chunks
These Kit Kat Cookies with Chocolate Chunks are a breeze to prepare, offering a sense of reliability that makes them perfect for any occasion. Their comforting texture, combined with a balanced flavor from both the chocolate chunks and Kit Kats, highlights the practicality of this recipe. With every bite, you’ll appreciate the mix of textures and delightful sweetness, making these cookies a great addition to your baking repertoire.
Kitchen Tools You’ll Need
- Mixing bowls
- Baking sheet
- Parchment paper
- Whisk
- Rubber spatula
- Measuring cups and spoons
- Sifter
Ingredients
- 250g unsalted butter, at room temperature (provides moisture and richness)
- 200g granulated sugar (adds sweetness and structure)
- 120g light or dark brown sugar (contributes moisture and a slight caramel flavor)
- 1 egg, at room temperature (binds ingredients and adds moisture)
- 1 egg yolk, at room temperature (enhances richness)
- 1 tsp vanilla extract (adds warmth and flavor)
- 200g All-Purpose Flour, sifted (provides structure)
- 80g Cocoa, sifted (adds chocolate flavor and color)
- 1 tsp kosher salt (balances sweetness)
- ½ tsp baking powder (helps cookies rise slightly)
- ½ tsp baking soda (provides leavening to create a lighter texture)
- 300g Kit Kats, coarsely chopped (adds crunch and unique sweetness)
- 150g chopped chocolate (dark) (intensifies chocolate flavor)

How to Make Kit Kat Cookies with Chocolate Chunks
Step 1. Begin by creaming the room temperature unsalted butter, granulated sugar, and light or dark brown sugar in a mixing bowl. Use a whisk or mixer to combine them until the mixture is light and fluffy. This process incorporates air into the butter, creating a lighter texture for your cookies. You’ll know it’s ready when the mixture appears paler and has a creamy consistency.
Step 2. After achieving a fluffy mixture, add in the whole egg and the egg yolk, along with the vanilla extract. Beat these ingredients together until they are fully incorporated and the mixture has smoothened out. The egg and yolk enrich the dough, providing moisture which is essential for a soft cookie.
Step 3. In another bowl, sift together the all-purpose flour, cocoa powder, kosher salt, baking powder, and baking soda. Sifting helps combine the dry ingredients evenly and removes any lumps, contributing to a smoother dough. You should see a light, airy powder that becomes the base for your cookie.
Step 4. Gradually add the dry mixture into the wet ingredients, mixing gently with a rubber spatula or wooden spoon until just combined. It’s important not to overmix, as this can lead to tougher cookies. The dough should start to come together without any visible dry ingredients remaining.
Step 5. Fold in the coarsely chopped Kit Kats and the dark chocolate chunks. This step ensures that you get a bit of that crunchy, sweet Kit Kat alongside rich chocolate in every bite. You’ll want to mix just enough to distribute the chocolate pieces evenly throughout the dough.
Step 6. Preheat your oven and prepare a baking sheet by lining it with parchment paper. This creates a non-stick surface and helps with even baking. You can also lightly grease it if you prefer, but parchment is a popular choice for easy removal.
Step 7. Using a cookie scoop or spoon, drop portions of the cookie dough onto the prepared baking sheet, leaving space between each one as they will spread while baking. Aim for evenly sized dollops for uniform baking. Each cookie should have some visible chocolate and Kit Kat pieces on top for a nice presentation.
Step 8. If you desire, sprinkle a few additional chopped Kit Kat pieces on top of each cookie for extra texture and visual appeal. This small detail adds a delightful crunch that pairs beautifully with the rich cookie dough.
Step 9. Bake the cookies in the preheated oven until they look set and are slightly firm around the edges but remain soft in the center. They will continue to firm up as they cool. Keep an eye on the cookies to ensure they don’t overbake, as you want that perfect balance of chewy and crunchy.
Step 10. Once baked, allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack. This cooling period helps them hold their shape while still warm. After a few minutes, you can move them to the rack to cool completely and develop their textures.

Serving Suggestions
These Kit Kat Cookies with Chocolate Chunks are perfect for a variety of settings. They make a delightful breakfast treat or a satisfying snack during the day. Pack them in lunch boxes for family meals or enjoy them alongside a cup of coffee or tea in the afternoon. You’re also likely to find them ideal for sharing at gatherings or picnics. Whatever the occasion, these cookies bring a comforting touch.
Pro Tips for Best Results
- Ensure your butter is at room temperature to achieve the right consistency when creaming with sugars.
- Mix the dough until just combined to prevent tough cookies.
- Use a cookie scoop for uniform cookies that bake more evenly.
- Allow cookies to cool completely on a wire rack to maintain their texture.
- Keep an eye on baking times, as ovens may vary; slightly underbaking can yield a softer cookie.
- Feel free to adjust the chocolate mixture for a richer or less sweet flavor profile.
Common Mistakes to Avoid
- Using cold butter: Cold butter does not cream well and can result in denser cookies. Always start with room-temperature butter for the best texture.
- Overmixing the dough: Overmixing can lead to tough cookies as it develops gluten. Mix until just combined for a tender outcome.
- Skipping the sifting step: Not sifting can result in lumps in the dry mixture, affecting the cookie’s texture. Always sift to ensure a smooth batter.
- Not spacing cookies enough: If cookies are placed too close on the baking sheet, they may spread into each other. Provide enough space for spreading.
- Underbaking or overbaking: Trust your visual cues; cookies should be firm at the edges and soft in the center when perfectly baked.
- Not cooling before moving: Moving cookies too soon from the baking sheet can cause them to break apart. Let them cool for a few minutes first.
Variations & Substitutions
You could consider swapping the Kit Kats for another favorite candy bar to create a different flavor experience within the cookies. Alternatively, using a mix of semi-sweet and dark chocolate can yield varying chocolate notes. If you’d like a nuttier element, adding coarsely chopped nuts can complement the flavors nicely.
Storage & Reheating
Store cookies at room temperature in an airtight container where they can last for several days. If you prefer longer storage, keep them in the refrigerator, where they should stay fresh for about a week. For even longer preservation, you can freeze the cookies, wrapping them in foil or placing them in a freezer-friendly bag. When ready to eat, thaw at room temperature or warm them in a microwave or oven briefly, just until they regain their soft texture.
Frequently Asked Questions
Can I make this recipe ahead of time?
Yes, you can prepare the cookie dough in advance and refrigerate it for up to 24 hours. Just bring it back to room temperature before baking, ensuring even consistency.
How long does it last in the fridge?
The cookies will last in the refrigerator for about a week if stored in an airtight container. Be sure to keep them sealed to retain their flavor and texture.
Can I freeze this recipe?
Absolutely! You can freeze the baked cookies for up to three months. They should be wrapped tightly to avoid freezer burn and can be thawed and enjoyed later.
What can I substitute for one ingredient?
If you don’t have brown sugar, you can use an equal amount of granulated sugar, keeping in mind that the cookies may have a slightly different flavor and moisture level.
Why didn’t my recipe turn out as expected?
Common culprits include incorrect ingredient measurements, baking times, or oven temperatures. Following the instructions closely and using the proper tools will help achieve the best results.
Final Thoughts
Baking these Kit Kat Cookies with Chocolate Chunks is a rewarding experience that allows you to create a delicious treat with minimal fuss. The end result brings satisfaction and warmth, whether enjoyed on their own or shared with loved ones. It’s a simple joy that makes any moment a bit sweeter, inviting you to create this comforting recipe again and again.

Kit Kat Cookies with Chocolate Chunks
Ingredients
Base Ingredients
- 250 g unsalted butter, at room temperature provides moisture and richness
- 200 g granulated sugar adds sweetness and structure
- 120 g light or dark brown sugar contributes moisture and a slight caramel flavor
- 1 large egg, at room temperature binds ingredients and adds moisture
- 1 large egg yolk, at room temperature enhances richness
- 1 tsp vanilla extract adds warmth and flavor
Dry Ingredients
- 200 g All-Purpose Flour, sifted provides structure
- 80 g cocoa, sifted adds chocolate flavor and color
- 1 tsp kosher salt balances sweetness
- ½ tsp baking powder helps cookies rise slightly
- ½ tsp baking soda provides leavening to create a lighter texture
Add-ins
- 300 g Kit Kats, coarsely chopped adds crunch and unique sweetness
- 150 g chopped chocolate (dark) intensifies chocolate flavor
Instructions
Preparation
- Cream the unsalted butter, granulated sugar, and light or dark brown sugar in a mixing bowl until light and fluffy.
- Add the whole egg, egg yolk, and vanilla extract to the butter mixture and beat until fully incorporated.
- In another bowl, sift together the all-purpose flour, cocoa powder, kosher salt, baking powder, and baking soda.
- Gradually mix the dry ingredients into the wet mixture with a rubber spatula until just combined.
- Fold in the chopped Kit Kats and dark chocolate chunks until evenly distributed.
Baking
- Preheat the oven and prepare a baking sheet lined with parchment paper.
- Drop portions of the cookie dough onto the prepared baking sheet, spacing them well apart.
- Sprinkle additional chopped Kit Kat pieces on top if desired.
- Bake cookies until they are set around the edges but soft in the center.
- Cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.



