International
Peel the onions and slice into 1 cm rings, separating them individually.
Whisk the flour, baking powder, salt, and paprika, then beat in the egg and sparkling water to make a batter.
Heat the oil to 180 C.
Dip each onion ring into the batter, then coat in breadcrumbs.
Fry in batches for 2-3 minutes until golden and crisp.
Drain on paper towels, season with a little salt, and serve hot.