Instructions:
Prepare the Dough:
In a large bowl, combine 1 cup of flour, sugar, salt, and yeast.
Add warm milk, warm water, melted butter, egg, and vanilla extract. Mix until smooth.
Gradually add the remaining flour, 1/2 cup at a time, until the dough forms a soft ball.
Knead the dough on a floured surface for about 5-7 minutes until smooth and elastic.
Place the dough in a greased bowl, cover with a cloth, and let it rise in a warm place for about 1 hour or until doubled in size.
Shape the Doughnuts:
Punch down the dough and turn it onto a lightly floured surface.
Roll the dough to about 1/2-inch thickness.
Use a round cutter (about 3 inches in diameter) to cut out dough circles.
Place the dough circles on a baking sheet lined with parchment paper. Cover and let them rise for about 30 minutes.
Fry the Doughnuts:
Heat vegetable oil in a deep fryer or a large pot to 350°F (175°C).
Fry the doughnuts in batches until golden brown on both sides, about 1-2 minutes per side.
Remove the doughnuts with a slotted spoon and drain on paper towels.
Fill and Coat the Doughnuts:
Using a pastry bag fitted with a small round tip, fill the doughnuts with raspberry jam or your favorite jelly.
Roll the filled doughnuts in granulated sugar while they are still warm.
Serve and Enjoy:
Serve the doughnuts warm and enjoy the delicious treat!
