Step 1: Make the Dough

• In a large bowl, combine the flour, sugar, yeast, and salt.
• In a separate bowl, whisk together the warm milk, melted butter, and egg.
• Pour the wet ingredients into the dry ingredients and stir to form a dough.
• Knead the dough on a lightly floured surface for about 6-8 minutes until it’s smooth and elastic.
• Place the dough in a lightly greased bowl, cover with a clean cloth, and let it rise in a warm place for about 1-1.5 hours, or until it has doubled in size.

Step 2: Prepare the Cinnamon Swirl

• While the dough is rising, mix the brown sugar and cinnamon in a small bowl.
• In another small bowl, melt the butter for the swirl.

Step 3: Shape the Dough

• Once the dough has risen, punch it down and transfer it to a floured surface.
• Roll the dough into a rectangle, about 12 inches by 8 inches.
• Brush the surface of the dough with the melted butter, then sprinkle the cinnamon-sugar mixture evenly over the entire surface.
• Starting from one edge, tightly roll the dough into a log shape.

Step 4: Prepare for Baking

• Grease a 9×5-inch loaf pan and place the dough seam-side down in the pan.
• Cover with a cloth and let it rise again for 30-45 minutes, or until it has risen slightly above the top of the pan.

Step 5: Bake the Bread

• Preheat your oven to 350°F (175°C).
• Brush the top of the dough with the beaten egg for a golden, glossy finish (optional).
• Bake the bread for 30-35 minutes, or until it sounds hollow when tapped on the bottom, and the top is golden brown.

Step 6: Cool & Serve

• Let the bread cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
• Slice and enjoy!