While traditional skyr is made with skim milk, both yogurts are available in 0% fat, low-fat, and full-fat varieties.

Ju Shardlow: We're here in West Iceland, and we're gonna go and visit a creamery making traditional skyr. Now ... you will also have less cream, as the fat molecules, they will sort of go on ...

Skyr is an Icelandic cultured dairy product similar ... Spoon the mixture into the muffin cases – they will be very full. Sprinkle granulated or demerara sugar over the muffins and bake for ...