Slice onions into 1/2 inch slices and separate into rings, set aside.
In a large bowl, mix together the club soda, beer, egg white until well combined.
Add 1 1/2 cups flour, the cornstarch, and 2 tablespoons of the chili seasoning mix. Stir until well combined then let sit for 15 minutes.
Add 1-2 inches of oil to a large saucepan and heat to 180 C (350 F). While the oil is heating, line a baking sheet with paper towels.
Place 3/4 cup of flour in a shallow dish. Dip each onion ring into the flour, coat and evenly shake off excess flour (use an additional 1/4 of flour if needed).
Dip floured onion rings in small batches into the prepared batter, and let the excess batter to drain off.
Carefully lower rings into the hot oil using a long handled fork, skewer, or tongs. Fry 3 minutes or until golden brown.
Remove with a slotted spoon to paper towels to drain.
Repeat deep frying the rings until all are cooked.
Sprinkle the onion rings with remaining chili seasoning.
Serve with queso sauce or your favorite cheese sauce, enjoy.