Warm some of the milk in a casserole to finger warm temperature and mix it well with the fresh yeast and little of the flour until the mixture it is lump free.
Pour it over to a bowl and cover the bowl with a baking towel. Place the bowl on a warm place like the oven without heat or on top of the heater.
In another bowl pour the remaining milk, flour, eggs, sugar and the butter, mix it well with the yeast mixture.
Place the bowl with the batter on a warm place for another hour.
Make a little hole in the dough and place it on a floured surface.
Roll out the dough approx. 1,5 centimeters thick small circles. Let the dough rest one hour more, or until they have doubled in size.
Pour the frying oil in a casserole and heat it up to 175 degrees Celsius.
Place the beignets in the casserole and turn them several times during approx. 15 minutes. They are done when they have a golden-brown surface.
Place them on a paper to dry away the extra fat. Let the beignets cool down.
Sprinkle them with icing sugar.