In a mixing bowl, whisk together flour, milk, sugar, baking powder, vanilla extract, and salt until smooth.

In a deep fryer, heat vegetable oil to 350°F (175°C).

Dip each Oreo into the batter, ensuring it is fully coated.

Carefully place the battered Oreos into the hot oil, frying in batches for about 2-3 minutes or until golden brown.

Remove the fried Oreos with a slotted spoon and place them on paper towels to drain excess oil. Dust with powdered sugar before serving.