Combine bread flour, yeast, sugar, and salt in a large bowl.
Add warm milk, egg, and melted butter, then knead into a dough.
Let the dough rise for the first proofing.
Punch down the dough and shape it into a ball.
Line a pan with parchment paper and place the dough on it.
Cover and let the dough rise for the second proofing.
Bake in a preheated oven at 180°C for 20 minutes.
Let it cool on a wire rack before serving.