Chocolate Sandwich Cookies

Instructions

1. 1

   With the rack in the middle position, preheat the oven to 180°C (350°F). Line 2 cookie sheets with parchment paper.

2. 2

   In a bowl, combine the flour, cocoa powder and salt. Set aside.

3. 3

   In another bowl, cream the butter and icing sugar with an electric mixer. Add the egg yolk and water and beat until smooth. Using a wooden spoon, add the dry ingredients.

4. 4

   On a floured surface, roll the dough to a thickness of about 3 mm (1/8 inch). Cut out 28 cookies using a 6-cm (2 1/2-inch) fluted round cookie cutter. Arrange 7 cookies on each sheet.

5. 5

   Bake 1 sheet at a time for about 12 minutes. Let cool on the cookie sheet.