Soup of three onions

This is a nice onion soup that differs from the traditional onion soup by having 3 key ingredients: yellow onion, shallot and leek. Worth a try next time you want to make onion soup! To be served with croutons, a good idea is to make them yourself the way I suggest here (they come out pretty luxurious!)

Ingredients (x2):
2 yellow onions
2 shallots
½ leek
1 tablespoon butter or margarine
½ l water
2/3 bouillon cube
1 small bay leaf
1 teaspoon thyme
1/2 teaspoon black pepper

Garlic-croutons:
(semi-)dried bread
1 tablespoon oil
1-2 cloves garlic
(1 teaspoon dried parsley)

+ grated cheese

Preparation:
Peel the onions, cut them in halves and then cut them into thin slices or pieces. Wash the leek and cut it into pieces.
Melt the butter in a pan and add the onions. Give them 5 minutes to gain some colour, but don't let them become brown.

Add the water, the 2/3 bouillon cube and the spices. Cook under cover on mild heat for half an hour.
Cut the bread into cubes. Grind the garlic and fry it on the pan with oil. Add the bread cubes on the pan let them become slightly brown in colour. Optionally add some parsley on them.

Serve the soup with the croutons and grated cheese.

(Sorry for taking the picture a bit too late!)