Ooey, gooey, chewy, thick chocolate chip cookie bars made from scratch in a 9x13 pan - a true crowd favorite! They are made in one bowl, all mixed up by hand, with no machines required!
This recipe went Tiktok Viral with over 13 million views - watch the video here!
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Quick & Easy Cookie Bars!
This recipe for chocolate chip cookie bars is a mom's best friend and will become one of your go-to favorite recipes. It takes minimal effort (no scooping cookies needed!) and it is perfect for a crowd! They're great for a quick after-school treat or any occasion where you need to feed many people in an easy way. It's like a thick, gooey chocolate chip cookie cake without the fancy decorating!
More cookie bars I love: monster cookie bars, Thick & chewy funfetti blondies & s'more cookie bars!
Tips & tricks for the best chocolate chip cookie bars:
- This cookie bar recipe uses melted butter making them super soft and smooth - this is a crucial part to these cookie bars!
- Do not bake for too long or else you will have a dry cookie bar with a crunchy chocolate exterior.
- Experiment with adding different kinds of chocolate chips. Milk or dark chocolate chips, white chocolate chips, or peanut butter chips are all great options! You could even add some M&M's or turn them into kitchen sink cookies with caramel and pretzels.
- Serve with a scoop of vanilla ice cream for the ultimate treat!
- Store these bars in an airtight container or freeze for later. They last up to 3-4 days, but they taste best within the first 2 days.
Ingredients for Chocolate Chip Bars::
This is just an overview of ingredients & substitutions; click here to jump down to the full recipe card for ingredient amounts and instructions.
- Unsalted butter (melted): Salted is also fine here, just omit the added salt. Do not use margarine, as this will be too greasy.
- Light brown sugar
- Granulated sugar
- 1 egg + 1 yolk
- Vanilla extract
- Baking powder, baking soda, salt
- All-purpose flour: For a gluten-free version, use a gluten-free 1-to-1 flour but I personally like them best with half GF flour, half almond flour (like my chewy gluten-free cookie cake).
- Semi-Sweet Chocolate Chips (I use Nestle or Costco brand): Feel free to make these with your favorite chocolate chips, chunks, M&M's, or dairy-free chocolate chips!
- 9x13 pan (ideally light-colored metal)
Decorating Ideas for Chocolate Chip Cookie Bars
- Make a double batch of my cookie cake buttercream frosting to pipe on a decorative border!
- Top with flaky sea salt for an elevated taste - so, so good!
- Drizzle melted chocolate on top of cookie bars
- Add M&M's, sprinkles, crushed nuts, or almonds inside the dough or on top
Make them and love them? Try my One Bowl Chocolate Chip Cookies or my single-serve One Giant Chocolate Chip Cookie next!
How to Make Chocolate Chip Cookie Bars:
This is just an overview of ingredients & substitutions; click here to jump down to the full recipe card for ingredient amounts and instructions. Or watch my viral Tiktok video here!
Step 1: Mix Cookie Dough
Preheat oven to 350°F. Spray a 9x13 pan with nonstick cooking spray and cover with parchment paper (optional but recommended for easy removal).
In a medium bowl, mix together melted butter (¾ cup), light brown sugar (¾ cup), and granulated sugar (½ cup) and mix until combined. Add in egg, egg yolk, vanilla (2 teaspoons), baking soda (1 teaspoon), baking powder (¼ teaspoon), and salt (½ teaspoon). Mix. Add flour (2 - 2 ¼ cups, see "notes section" in recipe card below regarding flour amounts), ½ cup whole chocolate chips, and ½ cup chopped chocolate chips. Stir until combined.
Tip: Adding the chocolate chips at the same as the flour will help the chips be evenly distributed and prevent them from falling to the bottom of the bowl.
Step 2: Press Cookie Dough Into Pan
Press cookie dough into a greased, parchment-lined 9x13" pan. Once smooth, sprinkle the remaining ½ cup chocolate chips on top and lightly press each into the dough. If you see any chocolate chips stuck together or on the edge of the pan, relocate them. This will help create clean edges when cut!
Step 3: Bake
Bake at 350 degrees for 16-18 minutes or until cookie bars are lightly golden brown (do not overbake, you want to underbake slightly for a gooey cookie). Allow the cookie bars to cool completely before cutting into squares/bars! Or don't and eat a warm bar with ice cream (just note that they will look too dough & crumble a bit more when hot but will continue to bake in the hot pan!).
Step 4 (optional): Decorate Chocolate Chip Cookie Bars
To decorate chocolate chip cookie bars, you can use some of the following:
- Make a double batch of my cookie cake buttercream frosting to pipe on a decorative border
- Drizzle chocolate on top of cookie bars
- Add M'm's or sprinkle crushed nuts or almonds on top
Frequently Asked Questions
I like these chocolate chip cookie bars best with semi-sweet chocolate chips but you can also use milk chocolate chips! Dark, milk, white chocolate chips would all taste delicious in these bars, as well. Or you can always chop up your favorite chocolate bar or leftover Halloween candy for super delicious cookie bars.
The cookie bars freeze well after being baked and cooled completely. To freeze, cool the bars completely before placing them into an airtight container or freezer bag for storage. They will keep in the freezer for 1-2 months.
I used a 9x13 metal baking pan and it turned out to be the perfect size for these thick bar cookies. If you bake these in a smaller pan, you will want to use less dough (freeze the extra and bake into cookies later!) and will just need to increase the baking time.
You can also use glass, just take note that the cookie bars may need longer to bake. In general, I always recommend using metal baking pans for cookie bars.
This cookie bar recipe yields approximately 24 servings, depending on how large you cut them. For cookie platters, I like cutting these in smaller 1-2" bite-sized pieces.
Check out some of my other tried-and true cookie bar recipes:
Chocolate Chip Cookie Bars
Ingredients
⭐️ Before you begin! If you make this, will you do me a huge favor afterwards and leave a review and rating letting me know how you liked this recipe? This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Instructions
- Preheat oven to 350°F.
- Place ½ cup of chocolate chips on a cutting board and use a knife to chop into small pieces. Set aside.
- In a medium-sized microwave-safe bowl, melt the ¾ cup unsalted butter (not margarine) for 20-30 seconds until JUST melted. (If your butter is steaming, let it cool down for a few minutes. Butter that is too hot can result in greasy bars and/or will cause the eggs to cook.)
- Add in ½ cup granulated sugar and ¾ cup light brown sugar and use a spatula to stir until combined (* do not use a mixer!). Add in 1 large egg + 1 yolk and 2 teaspoons vanilla extract. Mix until combined.
- Stir in 1 teaspoon baking soda, ¼ teaspoon baking powder, and ½ teaspoon salt. Add in 2 cups all-purpose flour, 0.5 cups semi-sweet chocolate chips, whole and the 0.5 cups semi-sweet chocolate chips, chopped. Mix until all the flour disappears into the dough. Immediately proceed to the next step.
- Press dough into a greased or parchment-lined metal 9x13" pan until smooth. Sprinkle the remaining 0.5 cups semi-sweet chocolate chips, whole on top and gently press each one into the dough.
- Bake at 350°F for 16-18 minutes until edges and top are lightly golden brown. Do not overbake or your chocolate chip cookie bars will not be soft. You want the cookie bars to be lightly brown on the top and look slightly underbaked (my oven was perfect at 16 minutes). Remove from oven and place entire pan on a cooling rack.
- Allow the cookie bars to cool completely before removing from pan. Slice into 24 squares, then enjoy! To keep fresh, cover pan with saran wrap or place bars in airtight continer for up to 3 days (after that they start to dry out). See notes below for freezing tips.
Notes from Melissa
Video
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I'd LOVE to hear your thoughts! Leave a review & photo of your creation and be sure to mention @DesignEatRepeat or tag #DesignEatRepeat on Instagram!It's that easy! Now go and make these ultimate chocolate chip cookie bars! They're super-duper delicious and everyone will love them... guaranteed! If you make them, be sure to leave a comment below and tag me on Instagram @designeatrepeat. Enjoy xo!
great recipe! did browned butter instead, 1 cup total, they came out so gooey and delicious!
Absolutely delicious and couldn't be easier to make! Thanks Melissa!
Very easy to make and a big hit with everyone in the family - thank you!
Thank you so much for leaving a review, Julia!
I have been using this recipe to make cookies for a few years now and everyone, I mean everyone loves them.
Thank you so much for leaving a review, Ivy! So glad to her everyone has been enjoying this recipe!
Chopping half of the chips is a great idea. Love the soft texture of these bars.
Thank you so much for leaving a review! I really appreciate it!
This is my go to now. Love the soft texture
Thank you so much for leaving a review, Denise! I really appreciate it!
I made these last night they are awesome I did change the butter to brown butter sooo good
Thank you so much for leaving a review, Danielle! I really appreciate it!
Absolutely it was a great recipe
I made this twice in the last two days because I have contractors working here and I like to treat them. It turned out excellent both times. This recipe is definitely better than the pan recipe on the bag of tollhouse.
Thank you so much for taking the time to leave a review, Marianne! I really appreciate it!
I am a retired chef and I’ve made this recipe 3 times so far. This is by far one of my favorite chocolate chip cookie bar recipes. I have also used mini M&Ms in the batter. I have broken up Oreo cookies into the batter and other different types of candy and it is always a winner.
That makes me so happy to hear! Thank you so much for taking the time to leave a review, I really appreciate it!
Best brownie recipe I ever made. Going to make it again tomorrow
Thank you so much for leaving a review, Deb!
I bake a lot and my husband crowns this the best thing I make! Always chewy, buttery, and heavenly. It’s become our special occasion dessert!
That's so awesome, I'm so glad to hear you guys enjoy this recipe so much!! Thank you so much for leaving a review, Carmen! I really appreciate it!
I made these for a family trivia night and everybody loved them. I followed the recipe exactly but I had to bake them a little longer than the time suggested.
So happy to hear everyone enjoyed this recipe so much! Thank you so much for leaving a review, Sharon!
They are exactly perfect! I will never use another recipe! Thank you! Very good!
Thank you so much for leaving a review, Kari!
These are easy to make and delicious! The only thing I did was bake them a little longer. 20 minutes @ 350 in a glass 9x 13 dish, and they were still slightly underdone.....soft and chewy.
Thank you so much for leaving a review, Carolyn!
Super easy to make and very good. I may add some nuts next time to offset the sweetness.
This recipe is great! I made it today and I love it. Thank you!
Thank you so much for leaving a review, Bev!
Made these today with half chocolate chips and half vanilla chips and they were delicious!
Thank you so much for leaving a review, Kelly!