NYC Black and White Cookies

NYC Black and White Cookies are one of my favorite classic bakery treats. I love their soft, cake-like vanilla base and the signature icing that gives me a little vanilla and chocolate in every cookie. Although they look impressive on a dessert platter, I find them surprisingly straightforward to make at home. I serve them for parties, holidays, family gatherings, or simply alongside an afternoon cup of coffee or tea.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the cookies:

1 3/4 cups all-purpose flour

1/2 teaspoon baking powder

1/4 teaspoon baking soda

1/8 teaspoon salt

10 tablespoons butter, softened

1 cup granulated sugar

1 egg

2 teaspoons vanilla extract

1/3 cup sour cream

For the icing:

5 cups powdered sugar

7 tablespoons milk, divided

2 tablespoons corn syrup

1 teaspoon vanilla extract

1/2 teaspoon salt

3 tablespoons unsweetened cocoa powder

Directions

I preheat my oven to 350°F (175°C) and line two baking sheets with parchment paper.

In a medium bowl, I whisk together the flour, baking powder, baking soda, and salt until evenly combined.

In a separate large bowl, I beat the softened butter and granulated sugar until the mixture becomes light and fluffy.

I add the egg and vanilla extract, then continue mixing until everything is well incorporated.

I add half of the flour mixture and mix gently, taking care not to overwork the dough.

Next, I stir in the sour cream until the mixture looks smooth and evenly combined.

I add the remaining flour mixture and mix just until I no longer see any dry spots.

Using a 1/4-cup measure, I divide the dough into 12 portions. I arrange six portions on each prepared baking sheet, leaving plenty of room between the cookies because they spread as they bake.

I lightly dampen my hands with water and gently flatten the top of each mound.

Then I bake the cookies for 7 minutes, rotate the baking sheets, and continue baking for another 7–8 minutes. I look for lightly golden edges while keeping the centers soft.

I leave the cookies on the baking sheets for about 5 minutes before transferring them to a wire rack to cool completely.

To prepare the icing, I whisk the powdered sugar with 6 tablespoons of milk, corn syrup, vanilla extract, and salt until smooth.

I transfer 1 cup of the white icing to a separate bowl and reserve it for the vanilla halves.

To the larger bowl of icing, I add the remaining tablespoon of milk and the unsweetened cocoa powder. I whisk until I have a smooth chocolate icing.

Once my cookies have cooled completely, I turn them upside down so the flat bottoms are facing upward.

I spread vanilla icing over one half of each cookie and chill the cookies for 15–20 minutes, giving the first layer time to set.

I spread the chocolate icing over the remaining half of each cookie, keeping the dividing line as neat as possible.

Finally, I chill the finished cookies until both sides of the icing are completely set before serving.

Servings and Timing

This recipe makes 12 large NYC-style black and white cookies.

Prep Time: 20 minutes

Cooking Time: 18 minutes

Total Time: 1 hour 8 minutes

Servings: 12

Approximate Calories: 320 kcal per serving

The total time includes cooling and setting time for the icing, so I make sure I allow enough time before I plan to serve the cookies.

Variations

Chocolate Cookie Base: When I want an even more chocolate-forward dessert, I can replace a small portion of the flour with unsweetened cocoa powder to create a chocolate cookie base.

Citrus Flavor: I sometimes add a little finely grated lemon or orange zest to the cookie batter or vanilla icing. The citrus adds a fresh flavor that works especially well with the sweet glaze.

Almond Twist: I can replace a small amount of the vanilla extract with almond extract for a slightly nuttier bakery-style flavor.

Mini Black and White Cookies: For parties, I can scoop smaller portions of dough to create bite-sized cookies. I start checking them earlier in the oven because smaller cookies bake more quickly.

Holiday Colors: Instead of keeping the entire vanilla half white, I can tint some of the vanilla icing with food coloring to coordinate the cookies with a holiday or party theme.

Storage/Reheating

I store my black and white cookies in an airtight container once the icing has completely set. I place parchment or wax paper between layers so the icing doesn’t stick to the other cookies.

At room temperature, I find they are best enjoyed within about 2–3 days. For longer storage, I keep them refrigerated in an airtight container for up to about 5 days. I allow refrigerated cookies to sit at room temperature briefly before serving so the cake-like base can soften again.

I generally don’t reheat iced black and white cookies because heat can cause the glaze to soften or melt. If I want to freeze them, I prefer freezing the uniced cookies and adding fresh icing after they have thawed completely.

FAQs

Why are black and white cookies iced on the flat side?

I turn the cookies upside down and decorate the bottoms because that side gives me a broad, relatively flat surface. This makes it much easier for me to create the distinctive half-vanilla, half-chocolate finish.

Why are my black and white cookies dry?

I usually find dryness comes from adding too much flour, overmixing the batter, or baking the cookies too long. I measure my flour carefully, stop mixing as soon as the dry ingredients disappear, and remove the cookies once the edges are lightly golden.

Why does the vanilla icing need to set before I add the chocolate icing?

I let the vanilla side set first because it helps me maintain the clean dividing line that gives black and white cookies their signature appearance. If both icings are very soft, they can easily run together.

Can I make NYC black and white cookies ahead of time?

Yes. I can bake the cookies ahead of time and store the uniced cookies in an airtight container. I then prepare the icing and decorate them closer to serving time for the freshest appearance and texture.

Are black and white cookies actually cookies?

Despite their name, I find their texture much closer to a small cake than a crisp or chewy traditional cookie. The batter and sour cream produce a soft, tender crumb, while the flat surface provides plenty of room for the iconic two-tone icing.

Conclusion

NYC Black and White Cookies give me everything I love about an old-fashioned bakery dessert: a soft vanilla base, smooth icing, and two classic flavors in every cookie. I especially like how the simple decorating technique turns an easy homemade bake into something instantly recognizable.

Whether I make them for a holiday, a party, or an afternoon treat, these cookies bring a little New York bakery inspiration into my kitchen. Once the vanilla and chocolate icing has set, I have a batch of soft, colorful, cake-like cookies that looks just as inviting on a dessert table as it tastes.

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