Mini Black and White Cookies

Name: Mini Black and White Cookies
Ingredients: For the cookies; 1 1/4 cups all-purpose flour; 1/2 teaspoon baking soda; 1/2 teaspoon salt; 1/3 cup buttermilk; 1 teaspoon vanilla extract; 6 tablespoons unsalted butter; 1/2 cup granulated sugar; 1 large egg; For the icing; 1 1/2 cups confectioner's sugar, sifted; 1 tablespoon light corn syrup; 2 teaspoons lemon juice; 1/2 teaspoon vanilla extract; 2 tablespoons water; 1/8 teaspoon salt; 6 tablespoons cocoa powder, sifted; 1/4 teaspoon instant espresso powder