Step 1: Activate the Yeast

1. In a small bowl, combine warm milk, sugar, and yeast. Let sit for 5–10 minutes until foamy.

Step 2: Make the Dough
2. In a large mixing bowl, combine flour and salt. Add the yeast mixture, melted butter, and egg.
3. Knead for 8–10 minutes (by hand or using a stand mixer with a dough hook) until the dough is smooth and elastic.
4. Place dough in a greased bowl, cover, and let rise for 1–1½ hours until doubled in size.

Step 3: Prepare the Cinnamon Swirl
5. In a small bowl, mix cinnamon and sugar. Set aside.

Step 4: Roll & Fill the Dough
6. Punch down the dough and roll it out into a 9×18-inch rectangle.
7. Spread softened butter evenly over the surface, then sprinkle the cinnamon sugar mixture on top.
8. Roll the dough tightly from the short end into a loaf shape.

Step 5: Second Rise
9. Place the rolled dough into a greased 9×5-inch loaf pan. Cover and let rise for 30–45 minutes.

Step 6: Bake the Bread
10. Preheat oven to 350°F (175°C).
11. Bake for 30–35 minutes until golden brown and hollow-sounding when tapped.
12. Let cool in the pan for 10 minutes before transferring to a wire rack.