These marble cookies are a decadent combination of a classic brown-sugary, vanilla cookie and a fudgy, brownie-like chocolate cookie. They are soft, chewy, and loaded with melty chocolate chips!
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What is a Marble Cookie and Why You'll Love Them
Marble cookies are two cookies in one! They have a chocolate dough swirled with a vanilla dough for a visually stunning and delicious cookie. The marbled layers create a perfect balance of deep chocolate flavor and warm vanilla sweetness. With irresistibly soft centers, they're as beautiful as they are indulgent.
We start with a single cookie dough base that is divided to create the two different chocolate chip cookie doughs before stacking the dough together to marble it into a striking swirled cookie. I love that it starts with one dough and you don't have to make two separate cookie doughs.
The vanilla dough is a classic chocolate chip cookie, with that rich, brown sugar flavor. The chocolate dough is fudgy and super chocolatey. While this dough does require some chill time, it is worth the wait.
For our cookie lovers, make sure you try our brown butter oatmeal cookies, chocolate chip marshmallow cookies, and brown butter peanut butter cookies.
Ingredient Notes
- Butter. You can use salted or unsalted butter here.
- Sugar. Use white, granulated sugar.
- Brown sugar. Use light brown sugar for that rich caramel-y flavor.
- Eggs. Eggs work as a binder in this recipe.
- Vanilla. Vanilla adds that classic bakery flavor to these marbled chocolate chip cookies.
- Salt. Salt enhances the flavors and balances out the sweetness.
- Cornstarch. Cornstarch keeps these cookies nice and soft in the center.
- Baking Soda & Powder. Baking soda and the powder work as leavening agents to help the cookies rise and spread.
- Flour. Use white, all-purpose flour.
- Cocoa Powder. I recommend using Dutch-processed cocoa powder. It gives the richest flavor. Natural and black cocoa powder provide a different flavor profile and also have different levels of acidity which will affect the chemical reaction.
- Chocolate Chips. I recommend using semisweet chocolate chips. The sharpness of the chocolate cuts through all the sweetness and complements it. However, feel free to use whatever you like.
How to Make this Recipe
- Cream the butter and sugars. In a large bowl, beat the butter with both sugars for about 1 minute, until smooth and combined. Add the eggs and vanilla, then continue mixing for 2-3 minutes, until the mixture is light and fluffy.
- Mix the dry ingredients. In a separate bowl, whisk together the salt, baking powder, baking soda, cornstarch, and 2 ¼ cups (281 g) flour. Add the dry ingredients to the butter mixture and mix on low speed just until no flour streaks remain. Scrape down the sides and bottom of the bowl as needed.
- Divide and flavor the dough. Evenly divide the dough in half (a kitchen scale helps for accuracy). To one half, mix in the cocoa powder and half of the chocolate chips. To the other half, add the remaining ¼ cup (31 g) flour and the rest of the chocolate chips.
- Chill the dough. Cover both portions tightly and refrigerate for at least 2 hours, or up to overnight. The dough is quite sticky and can be tricky to work with before chilling.
- How to marble the cookies. Preheat the oven to 350°F and line a baking sheet with parchment paper or a silicone baking mat. Take about 2 tablespoons of chocolate dough and wrap it around 2 tablespoons of vanilla dough, roll in your hands to create a round ball.
- Bake. Place marbled cookie dough on the baking sheet, leaving space for spreading. Bake for 10-12 minutes, until the edges are set and the centers look slightly underdone. Cool on the baking sheet for 5 minutes before transferring to a wire rack.
Frequently Asked Questions (FAQs)
If you want to be precise, the best way to divide the dough is to use a kitchen scale-zero out the weight of a bowl, add the dough to it for the total weight, then divide the weight in half. One half of the dough should weight about 430 grams, there may be some slight variation to that depending on how the ingredients were measured.
If you do not own a kitchen scale you can measure it using measuring cups or just eyeball it and do the best you can. Try not to handle the dough too much or gluten will develop and you'll end up with tough cookies.
You can absolutely double or halve this marble cookie recipe. Simply double of halve the ingredients for this recipe. I don't recommend doing more than tripling this recipe as it is hard for ingredients to be mixed properly and often leads to improper measuring.
Yes and no? You can still make this recipe using natural cocoa powder but there are a few things to keep in mind. First, just realize that this recipe was designed and tested using Dutch-processed cocoa powder. The Dutch-processed cocoa powder has the smoothest, richest chocolate flavor. Natural cocoa powder tends to be a little more bitter.
Beyond flavor, the cocoa powders' chemical makeups are different. Natural cocoa powder is more acidic and Dutch-processed cocoa is alkaline. Meaning, they will react differently with the leavening agents.
Variations of this Recipe
Try tweaking these marbled cookies to your liking, here are some suggestions:
- Roll them in sugar-if you love that really crispy, crunchy sugary exterior try rolling the cookies in sugar before baking.
- Add white chocolate-instead of using all semisweet chocolate chips try using half white chocolate to really play up the black and white marbled look of the cookies.
- Add a molten center-try stuffing these marble cookies with something delicious for an extra gooey center. Try a teaspoon of frozen Nutella in the center, a soft caramel candy, or a teaspoon of frozen peanut butter. Make sure to seal it into the cookie dough so it doesn't leak out!
How to Store this Recipe
Room Temperature. These marble chocolate chip cookies are best eaten fresh. However, once cool, they should be stored in an airtight container at room temperature for 3 days.
Freezing Cookies. To freeze these chocolate marble cookies, cool the cookies completely. Place in an airtight container, removing as much air as possible to prevent freezer burn, and freeze. They can be stored in the freezer for up to three months. When ready to eat, let the cookies thaw on the counter until they return to room temperature. If you like, you can heat them in the microwave for a few seconds to make them warm and gooey again.
Freezing Cookie Dough. The marbled cookie dough can be frozen and baked at a later time. If you intend to freeze the dough, you can skip the two hour chill time in the fridge (the dough will be a little sticky to handle). Marble the two doughs together and form into cookie dough balls. Place on a small tray and freeze for 30-60 minutes. After the initial freeze, place in an airtight container and freeze for up to three months.
When you are ready to bake your marble cookies, let the dough balls thaw for 30-60 minutes, then bake according to normal instructions. They may need an additional minute in the oven.
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Marble Cookies
Ingredients
- 1 cup butter (226 grams) salted or unsalted, room temperature
- ¼ cup granulated sugar (50 grams)
- 1 cup light brown sugar packed (200 grams)
- 2 large eggs
- 1 teaspoon vanilla
- ¾ teaspoon salt
- 1 teaspoon baking powder
- ¼ teaspoon baking soda
- 2 teaspoons cornstarch
- ¼ cup Dutch-processed cocoa powder (24 grams)
- 2 ¼ cups + ¼ cup all-purpose flour divided, (281 grams + 31 grams)
- 1 cup semisweet chocolate chips (178 grams)
Instructions
- Cream together butter and both sugars for 1 minute until smooth. Add eggs and vanilla and cream for 2-3 minutes until light and fluffy.
- Whisk together dry ingredients-salt, baking powder, baking soda, cornstarch and 2 ¼ cups flour (281 grams). Add to creamed butter mixture. Mix on low until there are no flour streaks. Make sure to scrape down the sides and bottom of bowl.
- Divide the dough in half. Try to do it as precisely as possible-I use a food scale to weight and divide equally. One half of the dough should weigh roughly 430 grams. To one half of the dough add the cocoa powder and half the chocolate chips. To the other half add ¼ cup (31 grams) flour and the other half of the chocolate chips.
- Cover the bowls tightly with plastic wrap and chill for 2 hours (up to overnight). The dough is quite sticky before chilling. Chilling the dough makes the dough easier to work with, improves the flavor, and prevents them from spreading too much.
- Preheat oven to 350 degrees Fahrenheit. Line a baking sheet with parchment paper or silicone baking mat. Take two tablespoons of chocolate dough and sandwich it around 2 tablespoons of the vanilla dough. Place on baking sheet, leaving plenty of room for them to spread. Bake for 10-12 minutes, they make look slightly underdone in the center-they will set up. Let cool on baking sheet for 5 minutes before transferring a cooling rack.
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