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                        | ½ cup blanched or peeled hazelnuts (do not use hazelnuts with the skins, which taste bitter) 2 ½ cups flour
 ½ cup superfine sugar
 ¼ teaspoon salt
 1 cup cold butter
 3 egg yolks
 1 teaspoon vanilla
 Vanilla sugar as needed
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 Grind the hazelnuts in a food processor until a fine texture. Add the flour and sugar and salt and grind well. With the machine running, feed in the butter to make a coarse meal. Drip in the yolks and vanilla. Use a disher to form into equal size balls. Roll into balls and then shape each ball into a crescent and place on a lined sheet pan. Chill the crescents for about 10 minutes before baking. Bake at 325 degrees for 15 minutes (or until the edges are slightly browned). Cool for a minute, then carefully roll the warm cookies in the vanilla sugar.
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 How to Make Vanilla Sugar
 1 vanilla bean, cut up
 2 cups sugar
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 Place the bean and sugar in a food processor and thoroughly grind. Sift through a sieve to remove any large pieces of vanilla bean.
 
 Equipment Needed: cookie sheets, pan liners, food processor, #70 disher, sieve.
 
 Makes 36 cookies.
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