Black and White Cookies

Ingredients

• 1 ¼ cups all-purpose flour
• 1 tablespoon light corn syrup
• 2 teaspoons fresh lemon juice
• ½ teaspoon baking soda
• 1 large egg
• ¼ cup unsweetened Dutch-process cocoa powder
• 2 tablespoons water
• + 7 more ingredients
• • ¼ teaspoon vanilla
  • ½ teaspoon salt
  • ¹/₃ cup buttermilk
  • ½ teaspoon vanilla
  • ¹/₃ cup unsalted butter
  • ½ cup granulated sugar
  • 1 ½ cups confectioners sugar

Preheat oven to 350°F. Whisk together flour, baking soda, and salt in a bowl. Stir together buttermilk and vanilla in a cup. Beat together butter and sugar in a large bowl with an electric mixer until pale and fluffy, about 3 minutes, then add egg, beating until combined well. Mix in flour mixtur...

View full recipe at Epicurious