Mix the lemon zest with the almonds, powdered sugar and pine nuts.
Beat the egg whites with the salt until frothy. Then add the lemon juice. Put the almond and pine nut mixture under the egg whites with the spatula.
Place small heaps with 2 teaspoons on a baking sheet lined with baking paper. Keep your distance, they diverge a little. Bake on the middle rack for about 14 minutes and then dust with powdered sugar.
Depending on the size, the amount is 60 - 80 pieces.