1In a large bowl, mix the flour with crumbled fresh yeast. If using dry yeast, dissolve it in a little warm milk first. Add sugar and salt.
2Incorporate the eggs one at a time, kneading the dough for about 10 minutes until smooth and elastic.
3Gradually add the softened butter, kneading continuously until fully absorbed and the dough becomes shiny and flexible.
4Cover the bowl with a clean towel and let the dough rise in a warm place for 1 hour and 30 minutes, until doubled in volume.
5Gently punch down the dough, then shape it as desired: a small loaf, rolls, or classic brioche à tête.
6Line the air fryer basket with parchment paper and place the shaped dough inside.
7Let the dough rise again, covered, for 30 minutes until fluffy and slightly puffed.
8Brush the surface of the brioche with a little milk for a golden, shiny crust.
9Cook in the air fryer at 160°C (320°F) for 15-20 minutes, until the brioche is nicely golden and internal temperature reaches 88°C (190°F). Let cool before serving.