Traditional Icelandic Twisted Donut (Kleine)

Method

1. In a large bowl, mix flour, sugar, salt, and baking powder.
2. In another bowl, whisk together milk, melted butter, egg, and vanilla extract.
3. Gradually add the wet ingredients to the dry ingredients, mixing until a soft dough forms.
4. Knead the dough on a floured surface for 5-7 minutes until smooth.
5. Cover and let rise in a warm place for 1 hour.
6. Roll out the dough into a long strip and twist it into a spiral shape.
7. Heat oil in a deep fryer or large pot to 350°F (175°C).
8. Fry the doughnuts until golden brown, about 2-3 minutes per side.
9. Drain on paper towels and dust with a mix of powdered sugar and cinnamon.