Whisk eggs and season. Mix flour and baking powder. Mix with the eggs. Gradually stir in the milk. Cover the dough and let it swell for about 15 minutes
Peel the onions. Cut into slices of about 1 cm thickness and divide them into rings
Heat the oil in a large frying pan. Stir the dough again until smooth. Pull onion rings through the dough in portions with a fork, let them drip off a little. Immediately turn in breadcrumbs and fry in the oil until golden brown, turning occasionally.
Remove each one with a skimmer and let it drip off on kitchen paper. Keep warm. Arrange on a plate and serve with various dips, e.g. tomato and chilli sauce, mango chutney or sour cream