Cream the butter and sugar together in a bowl.
Add the egg and mix until well combined.
Sift in cake flour, almond flour, salt, and baking powder and mix.
Fold in chopped dates, walnuts, and pistachios.
Divide the dough into equal portions and shape into balls.
Top the cookies with pieces of chocolate or dates.
Bake in a preheated oven at 180°C (356°F) for 12–15 minutes.
Let the baked cookies cool completely.