In a large mixing bowl, combine the all-purpose flour and semolina. Add the softened butter and powdered sugar. Mix with your hands or a spoon until crumbly and well-blended.

In a small bowl, dissolve the yeast in warm water. Let it sit for about 5 minutes until foamy.

Gradually add the activated yeast mixture into the flour mixture, stirring until a dough forms. Knead the dough lightly until smooth and pliable. Cover the bowl with a clean kitchen towel and let it rest for about 30 minutes.

While the dough is resting, prepare your fillings. Chop walnuts, pistachios, or dates finely, depending on what you choose.

Take a small amount of dough in your hands (about the size of a walnut). Create a small bowl shape in your palm and fill it with your chosen filling. Pinch the edges together to seal, then gently shape it into a ball or flatten it slightly.

Preheat oven to 350°F (175°C). Place the formed cookies on a lined baking sheet. Bake for 15-20 minutes or until they turn a light golden color.

Let the cookies cool completely on a wire rack. Dust with powdered sugar before serving.