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    Home » Desserts

    Jun 13, 2021 · Modified: Jan 15, 2022 by Melinda O'Malley Keckler · This post may contain affiliate links · this blog generates income via ads.

    Mrs. Fields Chocolate Chip Bars

    Jump to Recipe Print Recipe

    Mrs. Fields Chocolate Chip Bars are chewy, sweet and buttery with all the "deliciousness" of a chocolate chip cookie but with the ease of using just one pan. Make these yummy bars in a cast iron skillet and you have yourself a conversation-making treat that's especially fun to serve warm from the oven.

    Chocolate chip bar cookie on a spatula, lifted out of a cast iron skillet on an outdoor table.
    Each bar cookie is brimming with delicious melted chocolate chips and crunchy walnuts.

    Ingredients to Have on Hand

    • Semi-sweet chocolate chips, I highly recommend the Guittard brand
    • Walnuts
    • Butter
    • Brown sugar
    • Pink himalayan salt
    • Vanilla extract
    Ingredients for chocolate chip bars spread out on a cutting board.
    Simple ingredients add up to a great tasting, chewy cookie treat.

    Cast Iron Skillet Method

    Even if you have a glass 8" x 8" baking pan in the kitchen, there's something whimsical about making Mrs. Fields Chocolate Chip Bar recipe in an 8" cast iron skillet. The baking time is about the same, but when you take it out of the oven, the presentation is so much more fun in a cast iron skillet. It's a special treat to dish up a chocolate chip bar cookie from a warm skillet.

    Chocolate chip bar cookie on a spatula, lifted out of a cast iron skillet.
    Chewy, chocolatey and delicious! Either in a cast iron skillet or a baking dish, these bar cookies are simply divine.
    Dry ingredients with wet ingredients in a mixing bowl with the mixing paddle above the dough.
    A heavy-duty mixer works great for combing the ingredients, but you can easily blend the dough by hand as an option.
    Unbaked bar cookie dough in a cast iron skillet on a cutting board.
    No need to drop each cookie on a baking sheet, spread all of the dough into a cast iron skillet and head for the oven.

    My Favorite Chocolate Chips

    I've made this recipe using many, many different varieties of chocolate chips and it's fun to see how many of those brands rate on Epicurious. But hands-down, among all the many chocolate chip options out there my favorite brand is Guittard. The chocolate is creamy and the flavor is absolutely wonderful, it reminds me of what a really special piece of chocolate from a ritzy candy store tastes like and combined with chopped walnuts, it's chocolate chip cookie perfection!

    Chopped walnuts and chocolate chips on a cutting board.
    Walnuts and chocolate chips combine for the perfect filling in this cookie recipe.

    Salted Top

    I like topping the cookies with a very, very light dusting of pink himalayan salt. A little goes a long way, even a pinch of the salt make a big difference, but I think it heightens the flavor of the chocolate chips.

    You could use any variety to salt, but I prefer to use pink himalayan salt with buttery baked goods like cookies. I also like the fine grain instead of a more coarse or flaky blend, it's a little more subtle than seeing a chunk of salt on a cookie.

    Baked chocolate chip cookie bar in a cast iron skillet.
    You can't see the light sprinkle of pink himalayan salt on top of this chocolate chip bar cookie, but it's there!

    Tips and FAQ

    I like the skillet idea. Does it have to be a cast iron skillet?

    I've only made these cookie bars using a cast iron skillet so I can't vouch for or recommend using any other type of frying pan to make a skillet chocolate chip cookie.

    Most frying pans are designed for stove top cooking such as browning, sauteing or frying and not all of them are oven safe.

    Cast iron is different, it holds and distributes the heat beautifully and can pretty much handle anything from an open fame, to charcoal, to the heat of the oven. Another plus of a cast iron skillet - if cared for properly, it will last for generations. Talk about a great investment!
    Baked Mrs Fields Chocolate Bars in a cast iron skillet on a wooden table.

    The center of the cookie looks really soft, it is thoroughly cooked?

    The toothpick should come out clean, but the center should still be soft when you take this out of the oven. Once the cookie cools for 15 minutes or so, the center will set up beautifully. When it's warm, this skillet chocolate chip cookie is chewy and soft, not crisp or crunchy. Rely on the toothpick test to ensure the cookie is in fact baked to perfection.

    What's the secret to this cookie bar being so chewy?

    It's the perfect storm of using higher moisture ingredients like brown sugar and butter - as opposed to granulated sugar and shortening, and baking the chocolate chip bars at a lower temperature, a mere 300° F. All of those things combine to create thick, choclately cookie bars baked to chewy perfection. King Arther Baking (my favorite brand of flour) has a great article about the chemistry of chocolate chip cookies. Every ingredient and your technique all play a role in how cookies turn out.

    The Inspiration

    This recipe is my adaptation of a recipe called Chocolate Chip Butterscotch Bars found in Mrs. Fields Best Cookie Book Ever. Which is an interesting title for the bar cookies, because there's no butterscotch in them. But I think most of us can agree that when it comes to delicious cookies, Mrs. Fields is the ultimate pro and that particular cookie cookbook is wonderful.

    Note: The Crinkled Cookbook is not in any way affiliated with Mrs. Fields or the famous Mrs. Fields cookie brand, I'm just a big fan who has always loved her cookies, plus I have fond memories of buying them every time I'd go to the mall as a teenager. 🙂

    Chocolate chip bar cookie on a spatula, lifted out of a cast iron skillet.
    Chewy, chocolatey and delicious! Either in a cast iron skillet or a baking dish, these bar cookies are simply divine.

    More Sweet Treats

    • Peanut Butter Cookies
    • Classic Sugar Cookies
    • Molasses Snaps
    • Fancy Rice Krispy Treats

    Be sure to give a star rating to the recipes you make from the Crinkled Cookbook. I always love hearing from you. Sharing is great too! Use the buttons after the recipe to text it with just one click or send it to family and friends on Pinterest and Facebook. Enjoy.

    Bar cookie on a spatula lifted from a cast iron skillet.
    Melted chocolate chips, walnuts and buttery cookie dough create a bar cookie that almost tastes like it has a caramel filling.
    Chocolate chip bar cookie on a spatula, lifted out of a cast iron skillet on an outdoor table.

    Mrs. Fields Chocolate Chip Bars

    Chewy, sweet and buttery with all the "deliciousness" of a chocolate chip cookie, but this recipe is in and out of the oven just once.
    5 from 11 votes
    Print Rate Pin Recipe
    Prep Time: 10 minutes
    Cook Time: 40 minutes
    Total Time: 50 minutes
    Servings: 12 -16 people
    Calories: 482kcal
    Author: Melinda O'Malley Keckler

    Equipment

    • 8" X 8" baking dish or 8" cast iron skillet

    Ingredients 

    • 1 cup brown sugar
    • 1 cup butter softened
    • 1 egg
    • 2 teaspoons vanilla extract
    • 2 cups flour
    • ½ teaspoon baking soda
    • 1 cup walnuts chopped
    • 1 ½ cups semisweet chocolate chips Guittard brand is what I recommend
    • ¼ teaspoon pink himalayan salt

    Instructions

    • Preheat oven to 300° F.
    • Grease or spray Pam into an 8”x8” baking dish or an 8" cast iron skillet.
    • In a large bowl, or the bowl of your mixer, blend the brown sugar and butter until creamy.
    • Add eggs and vanilla extract and mix at medium speed until the batter is light and smooth.
    • Scape down the sides of the bowl and add the flour and baking soda. Mix for a few seconds to combine, then add the walnuts and chocolate chips and mix gently to incorporate the ingredients together, but don’t overdo it.
    • Scoop the batter into the prepared baking pan and smooth the top. Lightly sprinkle the salt across the top, a very light dusting of salt is all that's needed.
    • Bake for 35-45 minutes or until a toothpick inserted in the center comes out clean, but the center is still very soft.
    • Place pan or dish on a cooling rack and let cool for a few minutes before serving. Cut into 2” squares and enjoy. These are delicous served warm!
    Did you make this recipe? Scroll up and leave a star rating.Tap @crinkledcookbook and follow me today.

    Nutrition

    Calories: 482kcalCarbohydrates: 47gProtein: 6gFat: 31gSaturated Fat: 15gPolyunsaturated Fat: 6gMonounsaturated Fat: 8gTrans Fat: 1gCholesterol: 56mgSodium: 61mgPotassium: 228mgFiber: 3gSugar: 26gVitamin A: 506IUVitamin C: 1mgCalcium: 49mgIron: 3mg

    Please note, the nutrition details are estimated using a food database and are offered here only as a guideline for informational purposes.

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    1. NickiDE says

      May 20, 2022 at 5:46 am

      May I ask if you use light brown or dark brown sugar? Your photos look like light brown sugar, but many chocolate chip recipes call for dark brown. I like to follow a recipe specifically the first time I try it. Thank you.

      Reply
      • Melinda O'Malley Keckler says

        May 21, 2022 at 9:51 am

        Hello! I use light brown sugar in this recipe. 🙂

        Reply
    2. Addie says

      June 16, 2021 at 2:29 pm

      5 stars
      These cookie bars had the perfect texture! Gooey, chewy and delicious!

      Reply
    3. Oscar says

      June 16, 2021 at 11:57 am

      5 stars
      These bars are amazing. They came out so soft and chewy on the inside. My kids loved them. Will be making again. Thank you.

      Reply
    4. Freya says

      June 15, 2021 at 11:03 pm

      5 stars
      These were absolutely delicious and really wowed at a party with kids when I brought out the skillet! We served with some vanilla ice cream to make them even more decadent!

      Reply
    5. Linda says

      June 15, 2021 at 11:00 pm

      5 stars
      Oh yum! This skillet cookies recipe sounds amazing especially with ice cream...more chocolates, please!

      Reply
    6. Alexandra says

      June 15, 2021 at 8:19 pm

      5 stars
      Oh, yum - this was just so delicious. We used the cast iron skillet method, and served warm with a scoop of cream. Yum!

      Reply
    7. Amanda says

      June 15, 2021 at 8:15 pm

      5 stars
      This was my dream dessert! The walnuts added such a nice flavor, and the cast-iron skillet made for the perfect crispness.

      Reply

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