Kit Kat Cookie Bars

The Halloween candy basket has been tempting my husband and me all week. Almost a week after trick-or-treat and we still have a basket full of candy! Instead of sending in all of the extra candy for our coworkers to enjoy, I decided to make them into delicious cookies, brownies, blondies and cookie bars. What’s better than a big, delicious, chewy chocolate chip cookie bar? A big, delicious, chewy chocolate chip cookie bar with your favorite candy thrown in! 😀 These bar cookies are super easy to make; just mix, bake and cut! Thick and chewy cookie bars loaded with chunks of Kit Kat Bars and chocolate chips. Melted butter is the secret to the incredibly chewy texture. Feel free to substitute the Kit Kat Bars for whatever candy you have lying around. I bet these would be great with Snickers, M&Ms, peanut butter cups, basically any kind of candy. 🙂 Can you really go wrong with throwing candy into a cookie recipe? I didn’t think so! 😉

One Year Ago: Chocolate Peanut Butter Surprise Cookies 

Kit Kat Cookie Bars

Printer Friendly Version

Ingredients:

  • 2 1/8 cups bleached all-purpose flour (10 1/2 ounces)
  • 1/2 teaspoon table salt
  • 1/2 teaspoon baking soda
  • 12 tablespoons unsalted butter (1 1/2 sticks), melted and cooled slightly
  • 1 cup light brown sugar (7 ounces)
  • 1/2 cup granulated sugar (3 1/2 ounces)
  • 1 large egg
  • 1 large egg yolk
  • 2 teaspoons vanilla extract
  • 1 cup chopped Kit Kat Bars
  • 1 cup milk chocolate chips

Directions:

  1. Heat oven to 325 degrees F. Butter the bottom and sides of a 9×13 inch metal baking pan. Put a long piece of parchment paper in the bottom of the pan, letting the parchment extend up two sides of the pan and overhang slightly on both ends. Place another piece of parchment paper in the same manner, perpendicular to the first sheet. (This will make it easy to remove the bars from the pan after they have baked.) Butter the parchment.
  2. In a medium bowl, whisk together flour, salt, and baking soda; set aside.
  3. In a large bowl, whisk together melted butter and sugars until combined. Add egg, egg yolk, and vanilla and mix well. Using a rubber spatula, fold dry ingredients into egg mixture until just combined. Fold in chopped Kit Kat Bars and milk chocolate chips. Transfer to prepared baking pan and smooth the top with a spatula.
  4. Bake until top is light golden brown, slightly firm to the touch, and edges start pulling away from sides of pan, 27 to 30 minutes. Cool on wire rack to room temperature. Remove bars from pan by lifting parchment overhang and transfer to cutting board. Cut into 2-inch squares and serve.

Yields: 24 2-inch cookie bars

Source: adapted from Two Pea’s & Their Pod, originally from Cook’s Illustrated, May 2006

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20 Responses to Kit Kat Cookie Bars

  1. yumm ! love the addition of kit kat in these bars 😀

  2. jennknee says:

    These look so rich and delicious. This is my favorite halloween treat. Hands down (kit kat) My favorite is putting into ice cream. Whiiichhh gives me an idea….! You should totally do a homemade Kit Kat Ice Cream post!

  3. Amy says:

    Wow, you sure had a lot of leftover candy! Kitkats are one of my faves. Putting them in a cookie bar sounds amazing 🙂

  4. This looks wonderful! I forsee mine having Butterfinger!

  5. You guys really did get a lot of candy. These look great.

  6. I was just thinking yesterday I’d love to try putting kit kats into a cookie or brownie or something, and this morning I get this in my email!
    You are so bad for my waistline, and all my workmates are complaining that I’m ruining their diets 😀
    Now I have to go shopping again.

  7. I think I’m in love with you! Kit Kats are my FAVORITE! Unfortunately, we don’t have any left over from trrick-or-treating, they were the first to be consumed. 🙂

  8. ChgoJohn says:

    I must admit. Probably the last thing I would think to do with “leftover” candy would be to use it to make cookies. My hat’s off to you, both for the idea and another great recipe.

  9. HOly Halloween leftover yummies! thanks 🙂

  10. Yum! What a great way to use left-over candy! These look fabulous! I made something similar a few months ago with Snicker Bars and they too were a big hit!

  11. Yummy!! These look awesome and what a clever way to use up the candy! I might be making payday cookies later this afternoon!

  12. Caroline says:

    I agree, great way to use leftover candy. These sound great, Christina! x

  13. I really wish I had a basket of candy left. We didn’t buy any this year since we never get anyone at the door. But I am really missing out on all of the candy fun.

  14. My boyfriend would love these! They look great. Thanks for sharing.

  15. Lacy says:

    Ooohhh kit kats! These look incredible! I love kit kats! Thank God I don’t have Halloween candy laying around, I’d end up eating all of it.

  16. What a neat way to use up the excess Halloween candy. Now I wish I hadn’t swiped and eaten all the Kit Kat bars already lol. Well, gives me an excuse to buy more, right?
    Buzzed!

  17. Sandra says:

    I stashed our Halloween candy in the freezer and I sure hope there are Kit Kats in there. I think Santa may like for me to leave some of these for him next month.

  18. Oh my GAWWWDD this looks SO FREAKING GOOD.

  19. Sandi says:

    Candy–>cookies, great idea!

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