Mix 250 g flour, sugar, lemon peel and baking powder. Add the egg, 1 tablespoon cold water and butter in pieces. Knead first with the dough hooks of the mixer, then with your hands briefly to a smooth short pastry.
Cover and chill for about 30 minutes.
Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Line two to three baking trays with baking paper. Roll out the dough onto a little flour until it is about 3 mm thin. Cut out approx. 30 circles with wavy edges (approx. 5.5 cm Ø) and 30 circles with wavy edges (approx. 5.5 cm Ø, inside 2 cm Ø).
Knead dough residues again and again briefly, possibly chill, roll out and cut out. Spread circles and squiggles on the baking sheets.
Bake the cookies one after the other in a hot oven for about 9 minutes until golden brown. Take them out and let them cool down. Coarsely chop cranberries and pistachios. Mix icing sugar and lemon juice to a smooth glaze.
Spread the curls with it, sprinkle with cranberries and pistachios. Let the icing dry.
Stir the jam until smooth and spread on the circles. Cover each with 1 curl and allow to set.