Flour, baking powder, sugar, salt, pimento, orange peel,
Knead 1 egg and butter in pieces, first with the hand mixer and then briefly with your hands until smooth. Cover and chill for approx. 1 hour
Chop dates finely (very soft not so fine; they become mushy). Mix with nuts and cinnamon. Roll out the dough on a little flour to 2 rectangles (each approx. 12 x 40 cm). Sprinkle the date mixture on top, leaving about 2 cm free all around. Roll up from the long side. Wrap the rolls in foil. Chill for about 1 hour.
Cut into 15 diagonal pieces. Put upright on a baking tray covered with baking paper
Whisk 1 egg yolk and milk. Spread the biscuits with it. Bake in a hot oven (electric cooker: 175 °C/ convection oven: 150 °C/gas: level 2) for approx. 20 minutes. Cool down. Dust with icing sugar