1. Place the flour on the work surface, put the butter in the center, 40g sugar and yolks. Knead vigorously until you get a soft and homogeneous mixture.

2. Roll out the dough about 1 cm high and cut the letters as many small biscuits.

3. Arrange on a plate lined with greaseproof paper. Sprinkle with remaining sugar.

4. Bake in hot oven at 150-160°C until they are lightly golden.

5. Take off and serve hot.