I’m a real fried onion boy myself! This topping is tasty, light and fragrant.
Peel and halve, from the core to the top, 3 average-sized red onions (or about 6 shallots), then slice as thinly as you can. Heat a frying pan with a good lug of olive oil. Add 1 peeled, finely sliced clove of garlic, a good handful of fresh thyme leaves, and the onions. Add a pinch of sea salt and fry fast, keeping it on the move, for 4 minutes (the idea is to cook fast and caramelize the onions, but not to over-colour or burn them).
Next, add about 3 tablespoons of red wine vinegar and simmer for a further 4 minutes. Add some salt and black pepper and a little extra virgin olive oil, spread everything over your bread, then throw some extra thyme leaves over it. Looks great!