Kit Kat Cookie Bars

4 from 1 vote

These Kit Kat Cookie bars make the perfect cookie bar dessert for your upcoming parties. They’re gooey on the inside while buttery crisp on the edges. Kit Kat pieces are baked on top for an irresistible dessert!

If you love cookie bars like we do, try our Fruity Pebbles Cookie Bars recipe too.

square of kit kat cookie bars

Kit Kat

My cookie bars are topped with my favorite candy bar, the Kit Kat Bar! Buttery cookie bars around the edges while chewy sweet in the center.

Why You’ll Love This Recipe

  • Kit Kat! Who doesn’t love Kit Kat bars?! They make the BEST cookie bars. Eveyrone loves.
  • Easy To Make. Cookie Bars are some of the easiest cookies you’ll make. You simply press the dough into the baking dish, bake and cut into bars!
  • Great For Parties. Cookie Bars are so nice to take to parties, because they transport so great.

Be sure to try my Malted Chocolate Chip Cookie Bars recipe too! Follow Picky Palate on Instagram for daily recipe inspiration.

ingredients for kit kat cookie bars

What You’ll Need

Here are the simple ingredients you’ll need to make cookie bars at home. See the recipe card located at the bottom of the post for full details.

  • Butter– For most of my recipes I use salted butter. Unsalted works too.
  • Brown Sugar, Dark– Dark brown sugar is deeper in color and has more molasses in it. It is located by the light brown sugar.
  • Granulated Sugar– This fine white sugar adds sweetness to the bars.
  • 2 Large Eggs– For consistency, I use large eggs in my cooking and baking.
  • Pure Vanilla Extract– For best tasting results use pure vanilla.
  • All-Purpose Flour– Flour is the main dry ingredient in the bars.
  • Vanilla Instant Pudding Mix– Find the pudding mixes near the cake mixes in the baking isle of the grocery store.
  • Baking soda– Baking soda helps the cookie bars rise during baking.
  • Kosher Salt– Kosher salt is a course salt commonly used in cooking and baking. I prefer it over table salt.
  • Mini Chocolate Chips– Find mini chocolate chips near the regular chocolate chips in the baking isle.
  • Mini Kit Kat Bars– Find mini or regular size Kit Kat bars down the candy isle of your grocery store.
kit kat cookie dough in mixing bowl

How To Make Kit Kat Bars

Preheat Oven and Prepare Baking Dish. Preheat oven to 350 degrees F. and line a 9 x 13 inch baking dish with parchment paper.

Cream Butter and Sugars. Place butter and sugars into a large mixing bowl or stand mixer. Beat until creamy and well combined.

Eggs and Vanilla. Add eggs and vanilla stirring well to combine.

Dry Ingredients. Slowly add flour, pudding mix, salt, and baking soda. Stir until dough forms then add chocolate chips to combine.

pressed cookie dough in baking dish

Transfer Dough To Baking Dish. Transfer dough to baking dish and press evenly into dish.

cookie dough with kit kat bars on top

Bake. Top with Kit Kat bars and bake for 35-38 minutes or until baked through. Remove from oven and let cool completely before cutting into squares. Serve warmed or at room temperature.

baked kit kat cookie bars

Let Bars Cool Completely Before Cutting. Once the cookies are baked, let cool completely before cutting into squares.

kit kat cookie bars cut into squares

Cut Into Squares. Use a plastic knife or butter knife to cut into squares and enjoy!!

Tips For Making The Best Cookie Bars

  1. Don’t alter the recipe, use all ingredients as listed.
  2. Always use butter, not margarine. I prefer salted butter for my chocolate chip cookies.
  3. Don’t skip creaming your butter and sugars for a good 1-2 minutes.  Helps create a fluffy, chewy cookie bar.
  4. Try sprinkling dough with just a touch of salt for a perfect sweet and salty combination.
  5. Don’t overtake your cookie bars.  Bars will continue to cook in hot baking dish when removed from oven.
  6. Let cookies cool completely before cutting into squares and storing in containers. This will keep their crispness.
  7. Store leftover cookies in an airtight container for 3 days room temperature.
square of kit kat cookie bars

How To Serve

Serve Kit Cat Bars for any occasion that dessert is needed. Room temperature is best.

How To Store Leftovers

Store any leftovers in an airtight container for up to 3 days.  Does not need refrigerated.

Freezing Instructions

To freeze cookie bars, place cooled cookies in an airtight container or freezer safe bag for up to 3 months in the freezer. Thaw completely before enjoying again.

Try More Cookie Bar Recipes

kit kat
4 from 1 vote

Kit Kat Cookie Bars

These Kit Kat Cookie Bars make the perfect dessert for your next party or family gathering! A breezee to whip up and everyone loves these sweet, chewy cookie bars!
Course: Dessert
Cuisine: American
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings: 12 people
Calories: 324kcal
Author: Jenny
Cost: $25
Print Pin Rate

Equipment

  • Oven
  • mixing bowl
  • 9 x 13 inch baking dish
  • measuring cups
  • measuring spoons
  • mixing spoon

Ingredients

  • 2 sticks salted butter softened
  • 1 cup dark brown sugar packed
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon pure vanilla extract
  • 2 1/2 cups all-purpose flour
  • 3.4 ounce box instant vanilla pudding mix
  • 1 teaspoon kosher salt
  • 1 teaspoon baking soda
  • 1 cup mini chocolate chips
  • 20-22 Mini Kit Kat Bars

Instructions

  • Preheat oven to 350 degrees F. and line a 9 x 13 inch baking dish with parchment paper.
  • Place butter and sugars into a large mixing bowl or stand mixer. Beat until creamy and well combined. Add eggs and vanilla stirring well to combine. Slowly add flour, pudding mix, salt, and baking soda. Stir until dough forms then add chocolate chips to combine. Transfer dough to baking dish and press evenly into dish. Top with Kit Kat bars and bake for 35-38 minutes or until baked through. Remove from oven and let cool completely before cutting into squares. Serve warmed or at room temperature.

Nutrition

Calories: 324kcal | Carbohydrates: 65g | Protein: 4g | Fat: 5g | Saturated Fat: 3g | Cholesterol: 30mg | Sodium: 364mg | Potassium: 66mg | Fiber: 1g | Sugar: 43g | Vitamin A: 73IU | Vitamin C: 1mg | Calcium: 43mg | Iron: 2mg
Keywords: best cookie bars, best cookie bars recipe, cookie bars, kit kat, kit kat bar, kit kat bars

 

photo collage of kit kat bars

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1 Response
  1. Jlberry

    4 stars
    Thanks for posting this! Made them today and thought they were good. One thing I would change for next time is the bake time. I baked for 35 mins and they were over done. I know every oven is different but mine is usually spot on when I choose the lowest time on the scale. Otherwise, a good chewy bar!

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