Gather the supplies...
Chop the onions and the garlic, make sure to chop them fine.
Sauté the onions in some olive oil, make sure they don't burn. Ad the vinegar.
When the onions are soft ad the water, bouillon and bay leafs (or stock, then don't ad the bouillon) and let it boil for 15 min.
Drizzle the bread slices with olive oil, and put it in the oven. Take them out when they get brown and crisp.
When the bread is done, put the Parmesan on the bread at put it back in the oven. When the cheese is done pour the soup in a bowl and place the cheese bread on top.
Like this!! It's super tasty and really easy to make, perfect for fall.