These Kit Kat Cookies are perfect for using up Halloween candy. They are soft and chewy in the center and slightly crunchy around the edges, and are filled with chocolate chunks and chopped Kit Kat.
Hi hi! I am just popping in to share the recipe for these Kit Kat cookies with you! I love making homemade cookies, and I love Kit Kats, so adding Kit Kats was a bit of a no brainer here.
These are a bit of a riff on my peanut brownie cookies - aka peanut chocolate cookies, which are a New Zealand Baking classic. They have a chocolate base, then are filled with chunks of Kit Kat and chocolate. Just the best. If you're after a 'plain' cookie base, you can add Kit Kats to my classic chocolate chip cookie recipe.
The perfect way to use Halloween candy
I know Halloween will look a wee bit different for a lot of us this year. This recipe captures all the fun things about tiny candy bars, and pops them into a cookie! I started with a chocolate base, added in some chocolate morsels, and then mixed in a whole lot of chopped Kit Kat bars.
The chocolate gives the cookie a super delicious gooeyness, and then the Kit Kats are crunchy from the wafer and sweet from the milk chocolate coating. I loaded up the cookies with them and made them large bakery style. I then finished them some more chopped Kit Kats and some salt.
These cookies are super easy to make and the mixture comes together really quickly. It also requires no chilling time, meaning you can have Kit Kat cookies ready in well under an hour.
Ingredients in Kit Kat Cookies
This recipe is super simple and comes together with pantry staples and then some chopped Kit Kats.
- Unsalted Butter. The base of almost all my recipes here. Salted works great too, but omit the additional salt in the recipe.
- All-Purpose Flour - I played around a lot with the ratio of flour to butter in the cookies, and settled on something that gave the perfect amount of spread.
- Brown Sugar - These cookies have both granulated sugar and light brown sugar in them. The granulated sugar helps with the spread, while light brown sugar gives depth of flavour and softness. Both are needed for a perfectly balanced cookie!
- Chopped Chocolate. I love using chopped chocolate in my chocolate chip cookies to give melty pockets of chocolate.
- Cocoa Powder. Unsweetened cocoa is perfect for baking and gives the base of the cookie a chocolatey depth of flavour. This makes it perfect to load up with chocolate and Kit Kat pieces!
- Kit Kat Bars. I used a bunch of chopped mini bars leftover from Halloween, but regular kit kats would work great here too.
A few wee tips for making Kit Kat Cookies
- Because of the Kit Kat in these, the dough won't freeze super well. The cookies will keep in an airtight container for a few days!
- Make sure you give your oven enough time to preheat. Often even when your oven says it is done preheating, it isn't at a constant temperature. I like to give it about 20 minutes to warm up properly for best results.
- These cookies come out of the oven pretty puffy, so don't freak out. They will flatten off a little as they cool!
- I added some extra chopped Kit Kat on the tops of these both before baking for crunch. I then added some extra on top after baking if they looked like they had any bald spots!
FAQ for Kit Kat Cookies
- Can I make these with other candy? Yes you sure can! These would be great with Peanut Butter Cups or Snickers bars. Just sub the equivalent amount (300g) worth, or you can do a mixture of different candies!
- How do you store chocolate chip cookies? I always store cookies at room temperature in an airtight container. You can warm up slightly in the microwave for 10-15 seconds before eating. This gets them nice and melty
- Can I make these a different size? Yep! I used a ¼ cup cookie scoop which gave me 15 large cookies. If you like you can use a 2 Tbsp or a 3 Tbsp cookie scoop. Start with 11 minutes baking time and check them from there.
- How do you make chocolate chip cookies round? I give them a 'cookie scoot' which is where I take a round cutter bigger than the cookie. I then 'scoot' them into shape just as they are hot from the oven. It works great!
Tips for Perfect Chocolate Chip Cookies
For more Chocolate Chip Cookie Recipes:
- Small Batch Chocolate Chip Cookies
- Peanut Brownie Cookies (Chocolate Peanut Cookies)
- My Perfect Chocolate Chip Cookie
❤️ Made this recipe and love it? ❤️
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Answers to your baking questions
Over the years, many of you have asked me questions about:
- baking in grams
- adjusting oven temperatures
- what kind of salt to use
- and many more!
I've curated and answered them all for your easy reference in this frequently asked questions post!
Kit Kat Cookies
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 15 large cookies 1x
Description
These Double Chocolate Kit Kat Chocolate Chip Cookies are perfect for using up Halloween candy. They are soft and chewy in the center and slightly crunchy around the edges, and are filled with chocolate chunks and chopped Kit Kat.
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
- ½ tsp baking powder
- ½ tsp baking soda
- 300g kit kats, coarsely chopped, plus extra for the tops (optional)
- 150g chopped chocolate (I used dark)
Instructions
- Preheat the oven to 350°f / 180°c. Line 2-3 baking sheets with parchment paper.
- In the bowl of a stand mixer fitted with the paddle attachment, cream together the butter, granulated sugar, and brown sugar until light and fluffy, 2-3 minutes.
- Add the egg, egg yolk, and vanilla, and mix to combine, scraping down the edges as needed.
- Add the flour, cocoa, salt, baking powder and baking soda, and mix until just combined.
- Add in the chopped Kit Kat and chocolate and mix until just incorporated. Mix a few times by hand with a rubber spatula to ensure that the mix-ins are evenly incorporated.
- Using a ¼ cup cookie scoop, scoop balls of dough out onto the prepared baking sheet, leaving enough space for spreading (I can fit 6 per half baking sheet).
- Press additional chopped Kit Kat onto the tops of the balls.
- Bake the cookies for 15-16 minutes, until slightly set around the edges.
- Remove from the oven and scoot into shape if desired (see notes).
- Repeat the baking process with the remaining cookie dough balls.
- Allow to cool on the pans for 15-20 minutes before transferring to a baking rack and allowing to cool completely.
- Store leftovers in an airtight container at room temperature.
Keywords: Kit Kat, Cookie, Chocolate Chip Cookie, Double Chocolate Cookie, Halloween
Comments
Can you make these ahead of time, freeze them and bake them when needed ?
Hi! I popped some info in the tips section about that - because of the Kit Kat in them, I don't think that they would freeze well. The Wafer in the Kit Kat would soak up some moisture and they would go soggy. If you wanted to use other Halloween Candy that might work ok though! 🙂
Made these today, & they are so good! Love the crunch from the KitKat! I do have one question, just because I’m curious. What is the reasoning behind 1 egg + 1 yolk instead of the standard 2 eggs in most cookie recipes? Thanks!
Hi! Yay I am so glad you like! The yolk helps with flavour and also texture of the cookies - it helps to keep them chewy!
Well it definitely works some magic! May have to try that with other cookie recipes. Thanks for the feedback!
Hello! Is it possible to use a different Chocolate Bar? Say - Mars/Snickers? Also, how long can I keep them in a room temperature room? Thank you!
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Hi! Yep it should be fine! 🙂 They should keep 2-3 days!
These cookies will be very dangerous for me to bake, I LOVE Kit Kate so most of the cookies won't have any on top, I will be eating as I chop and scoop.😅🤣🤩😂 not really a big chocolate fan. Put Choiko,KitKat,Picnic bars or Anything white or caramel chocolate I'm gone... I will muddle thru and try getting them in the oven without eating ALL the KitKats...
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Oh my goodness! They were decadent and almost but inhaled by all and hardly kept a day. So so good!!
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Ahhh so happy you loved! They are a fave of ours!
I've made these 4 times in the last 3 weeks. Everyone who eats them, loves them. I have been doing virtual bakes with my sister in NZ so they are being spread through the homeland too. I always eat wayyyyy too much batter and wayyyy too many cookies. Guess thats why I go for a few runs each week - making the cookies worth it. Absolutely sold on this recipe! So quick, so easy, but SOOOO tasty!
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Is there a substitute for eggs in this recipe?
I don't know sorry as I haven't tested it!
I tried to make these and after 3 minutes in the oven they turned into soup 😭 I followed all the steps, I don’t understand what went wrong! All my ingredients gone to waste 😭
Hi! I’m so sorry to hear that? Two questions:
- did you make the recipe by weight?
- did you use convection (fan bake) in your oven / have you got an oven thermometer?
Hands down one of my fav cookie recipes along with Erins ultimate chocolate chip. The Kit Kat wafers provide the crunchiest little surprise in every bite. Also the base chocolate dough is heavenly, not too sweet but rich enough to satisfy any cookie craving. You have to give this a go!!
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I made these last week and really wanted to love them because KitKats are my favorite candy... but these cookies just weren't it. I wasn't a fan of the crunchiness from the wafers, and my coworkers agreed the texture of everything was "strange". When shoving more KitKat pieces into the balls before baking, just know the pieces are going to come out of the oven looking melty and like the chocolate wrinkled off the wafers. They also got hard very quickly despite keeping them in an airtight container, they tasted stale the following day. I will be going back to the tried & true- brown butter chocolate chip recipe. Those never miss!
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Sorry to hear they weren't for you!
Absolutely delightful recipe 🤩 Thank you so much!
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I replaced the Kit Kat with Oreos and the chocolate with peppermint white chocolate and made a Christmas cookie ! They turned out delicious !
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Can you make the dough ahead of time and refrigerate?
I don't think it would work well for these sorry as the kit kats will go soggy!
In the past I've found your cooking times really reliable with our oven but for this recipe I had to cut the timing down because the first lot I tried burnt. Not sure if it's because I added marshmallow to the mix (in addition to chocolate and moro bar). Anyway - with a shorter cooking time they are delicious. Thanks!
Oh no! The marshmallow could have changed the bake time a little!
I loved these cookies😍. I cannot wait to try them with different candy bars👍
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Hi am I missing something/doing something wrong as my chopped Kit Kats on top get burnt 🙁
sounds like your oven may be running a little hot?
Do you have a measurement version? I no longer have a scale but want to make them.
Hi! I don't sorry! There is a note above the recipe about this 🙂 Thank you!
Is it 30C/84F outside? Yes. Do I and my boyfriend dislike chocolate bakes? Also yes. And yet I made these in (hopefully) the last heat wave this summer and they are delicious!! It’s the third recipe I’ve tried from Erin and they never fail. I didn’t have enough KitKats and chocolate but they still turned out amazing. I made them slightly smaller so I cut the baking time by a few minutes. I used to hate baking cookies but these recipes make me wanna bake them nonstop.
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Just made these because my wife’s favourite candy is kitkat. They’re an absolute hit! Thanks for the recipe!
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Hi!
I want to make these cookies, but everything in the ingredients are done in grams how do you fix it to ounces?
You can google the conversions if you like! Otherwise a scale is an amazing investment