Biscuits with Lemon

Description
In Romanian: Pesmeti cu lamiie

Ingredients

 * 7 oz / 200 g butter
 * 5 oz / 160 g confectioner's sugar
 * 10 oz / 300 g flour
 * 1 teaspoon vanilla
 * 1/2 tsp. lemon peel or zest
 * juice from 1 lemon
 * 1 egg white
 * 2-3 tablespoons ground walnuts

Directions

 * 1) Beat the butter with the sugar until creamy.
 * 2) Add juice from 1 lemon, vanilla and flour.
 * 3) Knead quickly and let rest only 2–3 minutes.
 * 4) Roll a medium thick sheet and cut into circles.
 * 5) Cut these circles with a smaller cutter so that you get a hole in the middle.
 * 6) Place on the baking sheet, wash with beaten egg white and sprinkle with walnuts.
 * 7) When they are baked, you may spread marmelade or chocolate cream over them and then stick them together two by two.