Wednesday Cookies

01Method

1. 1

   In a bowl, beat the butter with the sugar until creamy. Mix in the eggs and vanilla extract, then fold in the sour cream. Whisk together the flour, baking powder, salt, and baking soda, then stir the dry mixture into the wet ingredients. Cover the dough and refrigerate for at least 1 hour.

2. 2

   Heat the oven to 350°F (175°C).

3. 3

   Scoop rounded teaspoonfuls of dough onto ungreased baking sheets. Bake for 10 to 12 minutes, then transfer to wire racks to cool completely. Once cooled, spread icing on the flat bottom of each cookie.

4. 4

   For the icing, place the shortening, milk, egg whites, flour, vanilla extract, and confectioners' sugar in a bowl. Beat on high speed with an electric mixer until light and fluffy — the longer you mix, the airier the texture will be.