When making rice pudding, it is important to use a thick-bottomed pot.
Start by pouring the water into the pot and bring it to a boil. Gradually add 2-3 dl of whole milk at a time while stirring. When the milk boils, add the rice and salt and bring it to a boil again.
Remove the pot from the stove and wrap it in a towel and possibly a blanket.
Put it under your duvet and let it sit for a few hours. Optionally, every hour you can take it out, put it back on the stove, and boil it for a minute or two. This will decrease the cooking time by about an hour.
After 3-4 hours, you can take your rice pudding out from under the duvet and put it back on the stove.
Boil it for a couple of minutes while stirring and the pudding is ready to serve.
Serve with cinnamon sugar and a pat of butter.