Preheat oven to 200 degrees. Keep a round pan or a square pan ready, after greasing and flouring.
Whisk together the flour, sugar, salt and yeast in a large bowl.
Warm the milk, water and butter in a microwave for 45 seconds. Whisk till butter is melted and mixture is lukewarm. Whisk in the egg.
Pour this wet mixture into the dry ingredients and start kneading till a smooth dough is formed - around 10 minutes. It may be slightly sticking but don't be tempted to add more flour.
Switch off the oven and snuck in the bowl into the warm oven for around 15 minutes.
Keep the butter ready. Whisk the sugar and cinnamon in a bowl and keep aside.
When the bowl is taken out, you will see the dough is risen. Flour the working surface and spread the dough into a rectangle, around 15 x 9 inch.
Spread the soft butter all over and sprinkle the cinnamon sugar. Roll tightly and cut into equal rolls - around 12. Arrange into the pan.
Preheat the oven again and while it gets done, let the rolls rest, around 10 minutes. Bake for 20 minutes.
Meanwhile, whisk the ingredients to make the glaze, add enough milk to keep it thick.
Once the rolls are out, cool slightly and pour the glaze over. Enjoy!