In stand mixer bowl, combine bread flour, sugar, yeast, egg, milk, and butter.
Mix for 20 minutes.
Place a towel over the dough and let rise on your counter for 2 hours.
Butter your glass baking pan and set aside.
Mix butter, sugar, brown sugar, and cinnamon together until well combined for your filling.
Roll out dough on a lightly floured surface and spread the cinnamon filling evenly across the bread.
Roll the dough into a log and cut into 1 inch slices then place in your baking pan. Cover lightly and let rise for 90 minutes.
After rising, preheat oven to 350 with your pan of water on the bottom shelf.
Place cinnamon rolls in the oven and cook for 15 minutes. After 15 minutes, carefully pull out the pan filled with water then continue baking for 10-15 minutes until rolls are done in the center.