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Chocolate Chip Cookie Bars

Chocolate Chip Cookie Bars

Source: Holiday Party Foods 2003, Winter 2003


  • 1 1/2 cups (3 sticks) unsalted butter, room temperature, plus more baking sheet
  • 4 cups all-purpose flour
  • 2 teaspoons baking soda
  • 3/4 teaspoon salt
  • 1 cup granulated sugar
  • 1 1/2 cups packed light-brown sugar
  • 2 large eggs
  • 1 tablespoon pure vanilla extract
  • 1 (12-ounce) bag semisweet chocolate chips


  1. Preheat oven to 350 degrees, with rack in center. Generously butter a 12-by-17-inch rimmed baking sheet; set aside. In a medium bowl, whisk together flour, baking soda, and salt; set aside.

  2. In the bowl of an electric mixer fitted with the paddle attachment, cream butter and sugars on medium speed until light and fluffy, about 2 minutes. Add eggs and vanilla; mix until well combined. Add flour mixture; beat on low speed until just combined. Beat in chocolate chips.

  3. Spread dough on prepared baking sheet. Bake, rotating sheet halfway through, until edges are brown and top is golden, 40 to 45 minutes. Transfer to a wire rack; let cool completely on baking sheet. Use a serrated knife to cut into 1 1/2-by-4-inch bars.

Reviews (17)

  • kristiwilson 15 Oct, 2015

    Batch #2. Made in 13x17" sheet/pan. Again, mixture seemed dry, so I increased to 3 eggs. Baked 25 minutes and done perfectly!

  • kristiwilson 11 Oct, 2015

    I read through all the comments before baking these.

    Batch #1. Made in a 9x13 glass pan. The mixture was VERY dry, so I added an extra egg. Baked for nearly 50 minutes at 350 and they still didn't get done in the center. (I had to cover lightly with aluminum foil at the 25 minute mark as the edges were getting brown already. Sides rose to a nice 2", but 1" into the pan everything collapsed after cooling. FAILED attempt.

  • cwhitten98 22 Dec, 2014

    I baked this in a 9 by 13 glass pan for 32 minutes and it was perfect! It was an instant hit.

  • Mswargo 3 Dec, 2014

    I wish I had read the reviews before I made these !!!
    I left them in for 35 minutes and they were so dry and brittle, I needed to make 10 dozen for work. What a waste of time and ingredients

  • Caden321 4 Aug, 2014

    Do NOT cook for 40 minutes. I made the mistake of doing that and they needed up burnt. Cook 25-30 minutes and then check them

  • memo2mary 4 Nov, 2013

    Obviously the photo does not match the size pan required. I thought my dough was dry so actually used my hands to pat it into the pan...yes the larger pan...didn't grease with butter but used my baking non-stick spray. Used a combo of chips/chunks. I did cut back some sugar. Patted chopped walnuts onto part. Keep an eye on baking time. Mine took about 30 min and came out great. Easy recipe, tastes good. Will make again.

  • myrtoz 3 Nov, 2013

    the cook time is 20 minutes!!!!!!!!!!!!!!!!!!!!!

  • beltland 30 Oct, 2013

    HELLOOOO???? MARTHA STEWART STAFF: THE TIME TO BAKE THESE IS WRONG. YOU NEED TO CORRECT THE RECIPE. These were delicious, but thanks to the previous reviews I knew to bake them for much less time than the recipe calls for. At 19 minutes they were perfect. By the way, we are at a high elevation so I decreased the sugars by a few tablespoons and tossed in about 1 tablespoon of water. It worked great.

  • markdianne 1 Mar, 2013

    I made this for my son's birthday. I used a glass 9 x 13 cake pan and baked it for about 25 minutes. I served it with vanilla icecream....OMG this is a great desert. I have had request to make it over and over.

  • clhusted 14 Jan, 2013

    Tastes great but agree with other reviewers- bake time is only 20 min. Website really needs to correct this!!!

  • hiatt 13 Oct, 2012

    I have been making this recipe for years and everyone raves about it. It is an easy recipe to change up with different types of chips (peanut butter and chocolate are a favorite in my house). Try butterscotch and cut them into triangles with sifted powdered sugar. They keep great airtight for a week, but they never last that long!

  • sdfghjkl 20 Aug, 2011

    UGH! Cookie dough spilled all over the bottom of the oven. This recipe is too big for the pan size indicated and overflowed the pan while it was baking. I am baking for a bake sale and need to get a ton done in a short amount of time. Now I need to turn off the oven and clean it. I am so disappointed. I turn to Martha's recipies for a "sure thing" frustrating!

  • sandrapiluso 9 Jun, 2011

    The bars turned out amazing! Very easy recipe to follow, tastes great and yielded a lot of bars!!! But they were gone in a flash. These will become one of the family favourites!

  • dbecker 12 Mar, 2011

    40-45 minute baking time is WAY too much! I wish I'd read Comment 2 BEFORE baking these. I cooked for 20 minutes, rotated, then cooked an additional 10 minutes which was still too long. Cooking for 20-25 minutes would have been perfect!

  • dbecker 12 Mar, 2011

    I wish I'd have read the comments before making this recipe! Cooking for 40-45 minutes is WAY too long. 20-25 minutes would be perfect. I cooked for 20 minutes, rotated, then cooked another 10 as I thought an additional 20 would be too much. Only cooking for 30 minutes was still too long!

  • walkokd2 18 Feb, 2011

    I did not have any trouble with the time, I left mine in for 42 minutes and they were soft still and tasted great. A few tips, I was worried because the dough seemed really dry, but it turned out fine, I hadn't made bar cookies in a while so I was surprised by the consistency, so if yours are dry, don't worry. I also used twice the called for chocolate chips - my boyfriend appreciated that! And they turned out great. I used a 9x17, but could use bigger, very thick cookies! almost 2" tall

  • leighannet 15 Jan, 2011

    1. these look pretty good. 2. these taste really good. 3. i was able to sub a banana for one stick of butter without loss of quality. 4. if you cut them the way described, the picture makes no sense. and if the picture is right, then its not using a 12x17 pan. 5. the time is WAY OFF. 15 mins and mine looked soft in the middle but done. and at 20 i had to take them out!

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