In a mixing bowl, whisk together the flour, sugar, baking powder, and salt.
In another bowl, beat the egg, then add the milk and vanilla extract, mixing until well combined.
Gradually add the wet ingredients to the dry ingredients, stirring until just combined.
Heat about 2 inches of vegetable oil in a deep skillet or pot over medium heat until it reaches 350°F.
Using a piping bag or a squeeze bottle, carefully squeeze the batter into the hot oil in a circular motion to create small bite-sized shapes.
Fry for about 1-2 minutes on each side or until golden brown.
Remove with a slotted spoon and drain on paper towels.
Dust with powdered sugar before serving. Enjoy warm!