Black and White Chocolate Bar Cookies Recipe

By
Yvonne Ruperti
A photo of Yvonne Ruperti, a contributing writer at Serious Eats.
Yvonne Ruperti
Yvonne Ruperti is a food writer, recipe developer, former bakery owner, and cookbook author. She is also an adjust professor of baking at the Culinary Institute of America in Singapore.
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Updated February 07, 2025
20130415-248335-chocolate-bar-cookies-primary.jpg
Photograph: Yvonne Ruperti

Cookie bars chock full of chocolate chips, nuts, and white chocolate chips.

Recipe Details

Black and White Chocolate Bar Cookies Recipe

Prep 7 mins
Cook 25 mins
Active 10 mins
Cool 90 mins
Total 2 hrs 2 mins
Makes 12 bars
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Ingredients

  • 10 tablespoons (5 ounces) unsalted butter, cubed

  • 1 cup (7 ounces) packed light brown sugar

  • 1/2 teaspoon salt

  • 1 large large egg

  • 1 teaspoon vanilla extract

  • 1 cup (5 ounces) plus 2 tablespoons all-purpose flour

  • 1/4 cup (3/4 ounce) plus 2 tablespoons cocoa

  • 1/2 teaspoon baking soda

  • 1/2 cup white chocolate chips, divided

  • 1/2 cup bittersweet chocolate chips

  • 1/2 cup walnuts, chopped

  • 1/4 cup dried cherries, optional

Directions

  1. Adjust oven rack to middle position and preheat oven to 350°F. Grease a 9- by 9-inch baking pan.

  2. In large bowl, stir butter with sugar and salt until creamy. Stir in egg and vanilla.

  3. Add flour, cocoa, and baking soda to bowl and stir to combine. Stir in 1/2 white chocolate chips, bittersweet chocolate chocolate chips, nuts, and cherries (if using).

  4. Spread into pan and smooth top. Bake until center is just set, 20 to 25 minutes. Let cool in pan 30 minutes. Cut into squares.

Special equipment

9- by 9-inch baking pan

Nutrition Facts (per serving)
3926Calories
217gFat
463gCarbs
47gProtein
×
Nutrition Facts
Amount per serving
Calories3926
% Daily Value*
Total Fat 217g278%
Saturated Fat 109g545%
Cholesterol 515mg172%
Sodium 1934mg84%
Total Carbohydrate 463g168%
Dietary Fiber 21g75%
Total Sugars 312g
Protein 47g
Vitamin C 9mg45%
Calcium 537mg41%
Iron 29mg159%
Potassium 1649mg35%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

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