Lemon Wafers

Directions

1. 1
   In a food processor, combine sugar and lemon zest.
2. 2
   Process until zest is finely minced, about 1 minute.
3. 3
   Stop the machine, and scrape down sides of bowl with a rubber spatula.
4. 4
   Add butter, and process until creamy, about 20 seconds.
5. 5
   With processor running, add egg whites.
6. 6
   Continue to process, adding flour (1 tablespoon at a time), salt, vanilla and lemon juice.
7. 7
   Process until a thick batter is formed.
8. 8
   Scrape into a small bowl, and stir to combine thoroughly.
9. 9
   Place a rack in center of oven, and heat to 400 degrees.
10. 10
    While oven is heating, let batter sit at room temperature, about 15 minutes.
11. 11
    Butter and flour 2 cookie sheets.
12. 12
    Drop rounded teaspoons of batter on prepared baking sheets, and bake for about 8 minutes, or until edges are golden brown.
13. 13
    Remove at once to a cooling rack.