Filled doughnut

Add yeast into the 1/2 cup warm milk. Flour in a bowl, add sugar, salt, butter, egg and the milk to make a dough and allow to rise

In the meantime, set pan on low flame put sugar in the pan, add flour, and vanilla flavor, add egg yolk and stir, add milk and cook until thick

Roll the dough and cut using round shaped cutter

Set oil on fire and fry on both sides

Allow to cook then dip into sugar, transfer the milk mixture into piping bag with nuzzle, make hole using the nuzzle and pour in the milk, do same for the Nutella.