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Hand picking up black and white cookie.

Gluten Free Black and White Cookies

by tw

Originally published January 29, 2019. Updated March 31, 2022.

Whether you call them Black and Whites, Half and halfs, Halfmoons or Unity cookies, they still taste the same. More tiny cake than cookie, they have a thick spongy texture flavored with vanilla and a hint of lemon and almond. In keeping with tradition, you’re supposed to get a little black and a little white with each bite. Enjoy!

Why You'll Love This Black and White Recipe

  • It is a close replica of the traditional New York City treat
  • They are easy to make.
  • Whether you like chocolate or vanilla, they have something for everyone.
  • It’s gluten free and dairy free!
Black and white cookies on a cookie sheet.

What Is a Black and White Cookie?

Black and White Cookies originated in New York City around 1900. Although there are many tales about how they came to be half vanilla and half chocolate, historians believe it was simply because two-toned desserts were popular at the time. They get their name from their “black and white” icing made from vanilla and chocolate fondant glaze. Black and white cookies are most commonly found in the northeastern United States, especially New York, although you can find similar cookies (Half and Halfs, Halfmoons, Unity Cookies, Harlequins and even Amerikaners) in other locations.

Many people outside of the region first heard of the Black and White cookie on the famous Seinfeld episode where he tells Elaine to “look to the cookie” in reference to racial unity.

Cookies and a jar of milk on a table.

Ingredient Notes

  • Gluten Free Flour – I use Bob’s Red Mill 1-to-1 Flour Blend for all of my recipes. You can use your favorite flour blend, but the results may vary. For the best outcome weigh your flour and use a flour blend that contains xanthan gum.
  • Baking Soda & Baking Powder – This recipe needs a little of both to get the perfect cake like texture of a black and white.
  • Salt – Just a little to enhance the flavors.
  • Butter – I use Miyoko’s vegan butter for this recipe, but you can use your favorite vegan butter. If you’re not dairy free, regular butter will work in the same measure. Do not use margarine.
  • Sugar – These cookies are a cross between a vanilla sugar cookie and a vanilla cake, so you need white sugar to achieve that flavor.
  • Egg – Just one egg to hold things together. I haven’t tried this recipe with an egg replacement. If you do, let me know how it turns out in the comments.
  • Buttermilk – Make your own vegan buttermilk by combining vegan milk and vinegar. The sour is a trademark of the black and white flavor.
  • Vanilla Extract, Lemon Zest & Almond Extract – all marry together to create the iconic flavor of this cookie.
Black and White cookies on a baking sheet.

How to Make Black and White Cookies

While these cookies look tricky, they are actually very easy to make.

  • Step 1: Combine the gluten free flour, baking powder, baking soda, salt and lemon zest in a small bowl. Stir together until well mixed.
  • Step 2: Combine room temperature butter and sugar in the bowl of an electric mixer. Beat on medium speed until light in color and fluffy.
  • Step 3: Add the egg and extracts. Beat another 60 seconds.
  • Step 4: With the mixer on the lowest speed, add half of the flour. Then half of the milk. Repeat with the remaining ingredients. Stir until just combined.
  • Step 5: Drop by 1/4 cupfuls onto a baking sheet lined with parchment paper, leaving 3-4 inches between cookies.
  • Step 6: Bake!

Once your cookies are baked and cooled, you will need to prepare the trademark icing.

Hands applying white fondant to half of cookie.
  • Step 1: Sift powdered sugar into a small bowl.
  • Step 2: Add milk, light corn syrup and vanilla. Stir until smooth.
  • Step 3: Flip your cookies over so the flat side is up. Use a spatula to frost half of the cookie with white icing.
  • Step 4: Wait for the white icing to dry to the touch – about 20 minutes.
  • Step 5: Add cocoa powder to the remaining white icing and stir well.
  • Step 6: Use a spatula to frost the second half of each cookie with chocolate icing, taking care to make a straight line down the middle.

Icing tip – you want your icing to be thick enough that it makes a ribbon that slowly fades away when drizzled into the bowl.  Err on the side of too thick rather than too thin, as it is easier to add more liquid than to make it thicken again. 

White fondant icing in a bowl.

How to Store These Cookies

Black and White cookies are best within one day of baking.

If you do have leftovers, place the cookies in an airtight container with wax paper between layers. They will last for 3 days at room temperature or 4-5 days in the refrigerator.

You can also freeze these cookies for up to 1 month. Individually wrap each cookie in plastic wrap and place inside a freezer bag or airtight container. Bring cookies to room temperature before serving. Do not heat the frosted cookies.

Pin for black and white cookies

If you are looking for more famous NYC recipes, check out these posts:

Gluten Free Copycat Levain Chocolate Chip Cookies

(Copycat) Gluten Free Milk Bar Birthday Cake

If you make this recipe, please leave a star rating on the recipe card below!

Black and white cookies on a cookie sheet.

Gluten Free Black and White Cookies

These iconic New York cookies are more like handlheld cakes. Soft in the center and covered half in vanilla icing and half in chocolate.
5 from 1 vote
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 15 minutes
Cook Time: 13 minutes
Cooling Time: 15 minutes
Total Time: 43 minutes
Servings: 8
Calories: 284kcal

Ingredients

For the cookies

  • 1 C +2 Tbsp Gluten Free 1-to-1 Flour Blend (165 grams) I use Bob's Red Mill
  • ½ tsp Baking Powder
  • ¼ tsp Baking Soda
  • ¼ tsp Salt
  • ½ tsp Lemon Zest
  • C Vegan Butter room temperature
  • ½ C Sugar
  • 1 tsp Vanilla
  • ½ tsp Almond Extract
  • 1 Egg
  • C Non-Dairy Milk can substitute regular milk
  • ½ tsp Apple Cider Vinegar

For the fondant icing

  • 1 ¾ C Powdered Sugar sifted
  • 2 Tbsp Non-Dairy Milk
  • 1 Tbsp Corn Syrup
  • 1 tsp Vanilla
  • 2 Tbsp Unsweetened Cocoa Powder

Instructions

For the cookies

  • Preheat oven to 350F degrees. Line 2 baking sheets with parchment paper.
  • Combine 1/3 C milk and apple cider vinegar. Stir and let sit while you prepare the remaining ingredients.
    1/3 C Non-Dairy Milk, 1/2 tsp Apple Cider Vinegar
  • Combine the flour, baking powder, baking soda, salt and lemon zest in a medium bowl. Stir well until mixed.
    1 C +2 Tbsp Gluten Free 1-to-1 Flour Blend, 1/2 tsp Baking Powder, 1/4 tsp Baking Soda, 1/4 tsp Salt, 1/2 tsp Lemon Zest
  • Combine butter and sugar in the bowl of an electric mixer. Beat on medium speed for 3 minutes until light in color and fluffy in texture. Scrape down the bowl.
    1/3 C Vegan Butter, 1/2 C Sugar
  • Add the vanilla, almond extract and egg. Beat for another 60 seconds. Scrape down the bowl.
    1 tsp Vanilla, 1/2 tsp Almond Extract, 1 Egg
  • Turn the mixer to the lowest setting. Add half of the flour mixture, followed by half of the soured milk. Repeat with the remaining ingredients. Stir until just combined.
  • Scoop batter into 1/4 cupfuls and drop onto prepared baking sheet leaving 3-4 inches between each mound. The cookies will spread a good bit when baking.
  • Bake in preheated oven for 13-14 minutes until edges are set. Remove from oven and cool on the baking sheet for 3 minutes, then transfer to a wire cooling rack.
  • Cool cookies completely before icing.

For the fondant icing

  • Combine the powdered sugar, milk, corn syrup and vanilla in a small bowl. Whisk until smooth. Icing should be thin enough to spread, but thick enough to hold a ribbon briefly when drizzled into the bowl. Err on the side of too thick, as it is easy to add more liquid.
    1 3/4 C Powdered Sugar, 2 Tbsp Non-Dairy Milk, 1 Tbsp Corn Syrup, 1 tsp Vanilla
  • Working one at a time, flip the cookies over and ice half of the bottom side of each cookie. Lay the half frosted cookies on a rack to dry. It will take about 20 minutes for the icing to dry to the touch.
  • Cover the vanilla icing bowl while waiting for the cookies to dry to keep the fondant from drying out.
  • Once the vanilla side has dried, add cocoa powder to the remaining vanilla icing. If it's too thick, add milk 1 teaspoon at a time to thin to desired consistency.
    2 Tbsp Unsweetened Cocoa Powder
  • Use a spatula to ice the second half of each cookie creating a line in the center. Allows cookies to dry completely before storing.
Nutrition Facts
Gluten Free Black and White Cookies
Amount per Serving
Calories
284
% Daily Value*
Fat
 
8
g
12
%
Saturated Fat
 
2
g
13
%
Trans Fat
 
1
g
Polyunsaturated Fat
 
2
g
Monounsaturated Fat
 
3
g
Cholesterol
 
20
mg
7
%
Sodium
 
212
mg
9
%
Potassium
 
52
mg
1
%
Carbohydrates
 
53
g
18
%
Fiber
 
2
g
8
%
Sugar
 
41
g
46
%
Protein
 
3
g
6
%
Vitamin A
 
443
IU
9
%
Vitamin C
 
1
mg
1
%
Calcium
 
50
mg
5
%
Iron
 
1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.
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