Step 1: 1) cook the onions and garlic together for 15 minutes, making sure they don’t burn and sweat down nicely.
Step 2: 2) add the stock and seasoning then bring to the boil, then allow to simmer for 20 minutes.
Step 3: 3) traditionally this soup is served with cheese crostini’s with gruyere. However, this is optional and if you want, you can just make a slice of cheese on toast or a cheese toastie with whatever you have – sliced bread or baguette and any cheddar. Make sure the grill is nice and hot so the cheese is golden brown and bubbling.