Quick cinnamon buns with puff pastry

Ingredients (8 small buns):

• buns
• 250 g of puff pastry (take the large sheet that's ready to roll out for faster version)
• 15 g butter, melted
• filling
• 45 g brown sugar
• 15 g white sugar
• 1/2 tbsp cinnamon
• a pinch of salt
• frosting
• 60 g powdered sugar
• 1/2 tsp vanilla extract
• 1/2 tbsp milk

Algorithm:

1. Preheat the oven to 170°C.
2. Mix ingredientes for filling in a bowl.
3. Roll out the puff pastry into a 10 inch square and brush with the butter.
4. Spread the filling over the sheet of puff pastry, leaving 1/2 inch borders (except the border closest to you). Try to make the filling melt into the butter.
5. Roll tightly from the bottom up, seal the seam.
6. Discard the edges and cut into 8 pieces. Lay them flatly on a baking sheet and put into the oven. Bake for 18--22 mins.
7. Meanwhile, mix everything for the frosting, it should be a little liquid, so add milk in small amounts to control the viscosity.
8. When the buns are ready, gather them together and spread the frosting on them. Let it cool down.

Source: https://www.wellplated.com/puff-pastry-cinnamon-rolls/