In a bowl, mix warm milk, sugar, and yeast. Let it sit for 5 minutes until foamy.
Add melted butter, egg, and salt, then mix in flour gradually.
Knead the dough for 8-10 minutes until smooth, then let it rise for 1 hour.
Roll out the dough into a rectangle and brush with melted butter.
Mix brown sugar and cinnamon, then sprinkle over the dough.
Roll the dough tightly, place it in a greased loaf pan, and let rise for another 30 minutes.
Bake at 350°F (175°C) for 30-35 minutes until golden brown.
Let it cool before slicing and serving.