01 - Whisk together flour, granulated sugar, baking powder, and salt in a large mixing bowl until evenly distributed.
02 - Beat eggs in a separate bowl, then whisk in milk, melted butter, and vanilla extract until fully incorporated.
03 - Pour wet ingredients into dry ingredients and stir until a soft dough forms. Add additional flour 1 tablespoon at a time if dough is too sticky to handle.
04 - Turn dough onto a floured surface and knead gently for 2–3 minutes until smooth and elastic.
05 - Roll dough to ¼ inch thickness. Cut into 3 x 3 inch squares or diamond shapes using a knife or pastry cutter.
06 - Heat vegetable oil in a deep fryer or heavy pot to 350°F.
07 - Fry dough pieces in batches, turning once, until puffed and golden brown on both sides, approximately 2–3 minutes per side.
08 - Remove fried pieces with a slotted spoon and drain on paper towels.
09 - Toss warm fried dough in granulated sugar mixed with cinnamon until thoroughly coated on all sides.
10 - Serve immediately while warm for optimal texture and flavor.