Why do Levain copycat cookies use cold butter instead of softened or melted?

Cold butter is the whole trick. When you cream cold cubed butter with sugar, it traps air and keeps the dough firm, so the cookies bake up tall and thick instead of spreading into flat discs. Softened or melted butter (like brown-butter recipes use) spreads much more and gives you a thinner, chewier cookie — delicious, but not the Levain texture.

Do I have to chill the dough?

A short 15-30 minute chill after shaping makes a big difference because cold dough hitting a 410°F oven sets the outside before the center can spread or overcook. If you skip it the cookies will spread more and the gooey-center effect is weaker. You can also freeze the shaped mounds and bake them straight from frozen, adding 1-2 minutes.

Can I leave out the walnuts?

Yes. Levain's most famous cookie is the chocolate chip walnut, but you can omit the walnuts for a pure chocolate chip version. Replace them with an extra 1/2 to 3/4 cup of chocolate chips or chopped chocolate so the dough-to-mix-in ratio stays the same.

Why is the cornstarch and cake flour in there?

Cake flour has less protein than all-purpose flour, and cornstarch softens the structure further. Together they give the cookies that tender, almost scone-like thick crumb in the center while the all-purpose flour provides enough structure to hold the tall shape.

My cookies look raw in the middle — did I underbake them?

Probably not. These are meant to come out with a soft, underdone-looking center; they finish cooking from the pan's residual heat as they rest. Pull them when the ridges and edges are golden and set. Let them sit 15-20 minutes before cutting in — the middle goes from molten to perfectly gooey.

Copycat Levain Bakery Chocolate Chip Walnut Cookies

Name: Copycat Levain Bakery Chocolate Chip Walnut Cookies
Prep time: 20 min
Cook time: 11 min
Total time: 31 min
Yield: 8
Ingredients: 1 cup cold unsalted butter (2 sticks), cut into small cubes; 1 cup packed light brown sugar; 1/2 cup granulated sugar; 2 large eggs, cold; 1 1/2 cups cake flour; 1 1/2 cups all-purpose flour; 1 tablespoon cornstarch; 3/4 teaspoon baking soda; 3/4 teaspoon kosher salt; 2 cups semi-sweet chocolate chips (or a mix of chips and chopped chocolate); 1 1/2 cups walnut halves, roughly chopped and lightly toasted; Flaky sea salt for topping (optional)

Prep time: 20 minutes (plus a 15-minute chill) Cook time: 11 minutes Servings: 8 enormous cookies

Levain Bakery turned a tiny shop on the Upper West Side of Manhattan into a cookie pilgrimage. People line up around the block for one thing: a six-ounce chocolate chip walnut cookie that’s crisp and craggy on the outside and almost shockingly gooey in the middle. These are not delicate cookies — they’re tall, hefty, and proudly excessive, and that’s the entire point.

The good news is that you don’t need a flight to New York to get one. The texture comes down to technique, not a secret ingredient: you cream cold butter (not softened, and definitely not melted), you keep the dough thick with a little cornstarch and cake flour, you shape tall craggy mounds instead of smooth balls, and you bake them hot and fast so the outside sets while the center stays molten.

Why Make It at Home?

A single Levain cookie runs about $4.50 at the bakery, and shipping a box across the country costs a small fortune. This recipe makes 8 bakery-sized cookies for roughly $6.00 in ingredients — well under a dollar each. You also get them warm out of your own oven, which is honestly better than any box that’s traveled overnight in dry ice.

What Makes a Levain Cookie Different

Most chocolate chip cookie recipes — including the brown-butter Crumbl style — start with melted or softened butter, which spreads into a wider, chewier cookie. Levain-style cookies go the opposite direction:

Cold creamed butter keeps the dough firm so it bakes up tall.
Cornstarch + cake flour create a tender, thick, almost under-baked center.
A short, hot bake at 410°F crisps the craggy exterior fast while protecting the gooey middle.
Six-ounce mounds mean a dramatic ratio of soft center to crunchy edge.

Tips & Variations

Keep everything cold. Cold butter, cold eggs, and a quick chill after shaping. Warmth is the enemy of a thick Levain cookie.
Don’t smooth the dough. Leave the mounds tall and jagged. Those rough peaks brown into ridges and give the cookies their signature rustic look.
Toast the walnuts. Five minutes in the oven or a dry pan deepens their flavor and adds a little crunch against the soft center.
Pull them early. They should look underdone in the middle when you take them out. Trust the carry-over heat — overbaked Levain cookies are just big, dry cookies.
Try the variations. Levain is famous for several flavors: swap in dark chocolate chunks for a Dark Chocolate Chocolate Chip version, or add a 1/2 cup of peanut butter chips. The base dough and method stay the same.

Copycat Levain Bakery Chocolate Chip Walnut Cookies