Heat 2–3 inches of oil in a deep skillet or pot to 350°F
Separate Oreo cookies if using stuffed or double-stuffed, or keep whole
Make batter by mixing 1 cup pancake mix, 1 egg, and 3/4 cup milk until smooth
Dip each Oreo into the batter to coat completely
Carefully place coated Oreos into the hot oil
Fry for 1–2 minutes per side until golden brown
Remove with a slotted spoon and drain on paper towels
Dust with powdered sugar
Serve warm