vegetable oil for frying
Mix all the dry ingredients. Melt the butter and add the milk and the egg. Add the dry ingredients through a sieve.
Heat the oil into 180 degrees celsius (356 °F). The temperature is right when a small drop of dough fries in a couple of minutes.
Use two teaspoons to drop the dough balls into the oil. Fry for 2 minutes.
Lift the doughnuts on paper. Roll the warm doughnuts in sugar.
You can make bigger doughnuts by using two tablespoons to form the dough balls. You’ll get about 20 regular-sized doughnuts (scale 1x).