This recipe seems to be common in the world of online delectables- here's my variation:
For the chocolate cookies:
1 1/4 cups whole wheat flour
1/2 cup unsweetened cocoa
1 teaspoon baking soda
1/4 teaspoon baking powder
1/4 teaspoon sea salt
1 cup sugar
1 stick room-temperature, unsalted butter
1 large egg
For the frosting:
1/2 stick room-temperature, unsalted butter
2 cups sifted confectioners’ sugar
2 teaspoons vanilla extract
1. Preheat oven to 375°F.
2. In a large bowl thoroughly mix the flour, cocoa, baking soda and powder, salt, and sugar. While stirring add the butter, and then the egg. Continue mixing until dough comes together in a mass.
3. Take rounded teaspoons of batter and place on a parchment paper-lined baking sheet approximately two inches apart. With moistened hands, slightly flatten the dough. Bake for 9 minutes, rotating once for even baking. Set baking sheets on a rack to cool.
4. To make the frosting, place butter in a mixing bowl, and gradually beat in the sugar and vanilla. Mix until filling is light and fluffy.
5. Sandwich the frosting between the cookies.