Prepare Wet Ingredients: In a mixing bowl, whisk together ½ cup of lukewarm milk, 1 large egg, and 3 tablespoons of melted butter until smooth and creamy.
Combine Dry Ingredients: In a separate large bowl, mix 2 cups of all-purpose flour, ¼ cup of sugar, and 2 teaspoons of instant yeast until well blended.
Form the Dough: Gradually pour the wet mixture into the dry ingredients, mixing until a slightly sticky dough forms, about 3-4 minutes.
First Rise: Cover the dough and let it rise in a warm area for 1.5 to 2 hours until doubled in size.
Shape the Donuts: Roll out the risen dough to ¼ inch thick and cut out donut shapes, letting them rest for 30 minutes.
Heat Oil for Frying: Heat vegetable oil to 170-180°C (340-360°F) for frying.
Fry Donuts: Fry 2-3 donuts at a time for 2-3 minutes per side until golden.
Prepare the Cream Filling: Whip 1 cup of heavy whipping cream with 2 tablespoons of sugar until stiff peaks form.
Fill the Donuts: Slice a small opening in each cooled donut, optionally add condensed milk, and fill with whipped cream.
Finish with Dusting: Dust filled donuts with powdered sugar before serving.
