Other ingredients: 350 gr of onion, 260 gr sugar, 350 gr of water, 150 gr of red wine vinegar, 30gr of raisins, salt and corn flour to taste.
Preparation
Cook for 40 minutes the red onion, cut into thin slices, with sugar, water, red wine vinegar and sultanas. Add the instant corn flour to salted water and cook for 5 minutes. Pour the mixture into a plate and leave to cool for 10 minutes. Overlap the “Frico” to the “polenta” and cook in the oven at 200°C for 15 minutes. Once taken out of the oven, garnish with the caramelized onion.