Peel off the paper from the milk can, then submerge the can in a lot of water. You want to make sure the can is totally under the water and some more.

Bring to boil for 5 H (for thick result), 3-4 H for store bought- like texture.

You want to keep adding hot water while boiling, whenever the water in the pot is going low. Again, the can needs to be totally covered with water.

Once 5 H marked, turn off stove and take out can off of pot. Let cool to room temperature before opening.