Mix 1 cup of warm milk in a large bowl with the yeast, add the oil and sugar to the bowl, mix everything well and then add the flour and salt, mix everything until incorporated and form a dough. Let it rise for about 40 to 60 minutes.
Move the dough to a lightly floured surface and stretch it with your hands, cut it into strips to form the donuts. Heat plenty of oil and fry the donuts in it for 2 to 3 minutes.
For the filling, beat the eggs in a medium bowl, add the cornstarch and sugar, mix until you get a smooth preparation, add the warm milk to the mixture and stir everything until incorporated.
Bring the mixture to the heat and stir constantly, once the mixture thickens, remove from heat and continue stirring, add the butter and vanilla extract.
Open the donuts in the middle and fill them with enough mixture, sprinkle them with a little sugar, cinnamon, or liquid chocolate for the finishing touch.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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