Prepare the Dough:

1. In a large bowl, whisk together the flour, sugar, yeast, salt, and cinnamon.
2. In a separate bowl, combine the warm milk, melted butter, eggs, and vanilla. Mix wet ingredients into dry ingredients and stir until dough forms.
3. Knead on a floured surface for 5-7 minutes until smooth and elastic. Alternatively, use a stand mixer with a dough hook attachment.
4. Place dough in a greased bowl, cover, and let rise in a warm place for 1-1.5 hours until doubled in size.

Shape the Bread:

1. Preheat oven to 350°F (175°C).
2. Punch down the dough and roll into a rectangle (about 1/2 inch thick).
3. Brush with melted butter and sprinkle with cinnamon sugar mixture. Roll tightly, jelly-roll style, and pinch to seal.
4. Shape into a loaf and place in a greased 9×5-inch pan.

Second Rise and Bake:

1. Cover the loaf pan with a towel and let rise for 30 minutes.
2. Bake for 30-35 minutes until golden brown and sounds hollow when tapped.

Coat with Cinnamon Sugar:

1. Combine sugar and cinnamon in a small bowl for coating.
2. After baking, let bread cool for 5 minutes. Brush top with melted butter and coat generously with the cinnamon sugar mixture.

Serve:
Slice and enjoy warm or at room temperature.