01 - Peel the onions and slice them into thick rings about 1/2 inch wide. Carefully separate into double rings, keeping one ring nested inside another to create a pocket for the filling.
02 - In a mixing bowl, combine the softened cream cheese, shredded cheddar, shredded mozzarella, and finely diced jalapeños. Stir until all ingredients are evenly distributed and the mixture is smooth.
03 - Gently spread the cheese mixture between the nested double onion rings, pressing lightly to seal the filling inside. Repeat until all onion rings and filling are used.
04 - Arrange three separate bowls: one with all-purpose flour, one with eggs whisked together with milk, and one with panko breadcrumbs seasoned with smoked paprika, garlic powder, salt, and black pepper.
05 - Dip each stuffed onion ring first in flour, then into the egg wash, and finally coat thoroughly with the seasoned panko breadcrumbs. For an extra crispy crust, repeat the egg wash and panko coating step once more.
06 - Place the breaded rings on a parchment-lined baking sheet and freeze for 30 minutes. This step firms up the filling and helps the rings hold their shape during frying.
07 - Heat vegetable oil in a large heavy-bottomed pot or deep fryer to 350°F. Fry the onion rings in batches for 2 to 4 minutes until golden brown and crispy. Remove with tongs or a slotted spoon and drain on paper towels.
08 - Serve hot with ranch dressing, chipotle mayo, or salsa for dipping.