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["Preheat the oven to 350u00b0F. Line two baking sheets with parchment paper.", "In a medium bowl sift together the cake flour, all-purpose flour, instant espresso powder, baking soda, and salt.", "In a large bowl, beat butter and the sugar with an electric mixer until light and fluffy, about 3 minutes. Add the eggs one at a time and beat until incorporated.", "Combine the buttermilk and the coffee liqueur in a liquid measuring cup. Gradually add the flour mixture and the buttermilk mixture to the butter mixture in three additions, beginning and ending with the flour. Beat just to incorporate after each addition, and scrape down the sides of the bowl as necessary.", "Drop six large (about 1/3 cup) spoonfuls of batter onto each baking sheet, spacing them about 3 inches apart. Bake for 15 to 18 minutes until the tops of the cookies are puffy and the tops spring back when pressed lightly. Transfer cookies to a wire rack and allow them to cool completely.", "To make the icing, combine the confectioners sugar, corn syrup, 1 tablespoon of water and coffee liqueur in a medium bowl and stir until smooth. Spoon half of mixture into smaller bowl and stir in the cocoa powder and 1 teaspoon of water.", "Spread half of the flat ""bottom"" side of each cookie with the coffee icing and half with the cocoa frosting."]
