Shaker Lemon Bars

Directions

1. 1
   {"0":"1. Slice lemons as thinly as possible; remove seeds. Toss slices with 2 cups sugar; transfer mixture to a flat resealable plastic container. Place in the refrigerator overnight.","2":"2. Place butter, salt, remaining 3\/4 cup sugar, and flour in the bowl of a food processor. Process until mixture is crumbly and starts to hold together.","4":"3. Heat oven to 400 degrees. Line a 12-by-17-inch baking pan with parchment paper. Press dough evenly into the bottom and up the sides of the pan, making sure there are no holes. There should be at least 1\/2-inch crust of dough going up the sides of the pan. Bake until golden brown, about 20 minutes. Transfer to a wire rack to cool completely, about 15 minutes","6":"4. Place lemon-sugar mixture and eggs in the bowl of a food processor. Process until lemon rinds are in 1\/4- to 1\/2-inch pieces, 30 to 40 seconds. Pour mixture over cookie crust. Bake until set, 15 to 20 minutes. Cool on a wire rack. Trim 1\/2 inch around edges of pan. Cut into about sixty 1 1\/4-by-2-inch pieces. Sift confectioners' sugar over cookies."}