Step by step
Baby onions, bay, pepper, balsamic vinegar, white wine vinegar, olive oil, salt, sugar
Tips
Do you want to try an unusual version - and one with a rather richer taste - of these sweet-and-sour onions? Use butter instead of oil whilst frying.
Trivia
‘Borettane’ onions originate in Emilia-Romagna, specifically in the town of Boretto, near Reggio Emilia.