→ For the Onion Base
01 -
A little sugar for getting a deep color
02 -
Good olive oil - 2 tablespoons
03 -
Unsalted butter - 4 tablespoons, broken into pieces
04 -
Big yellow onions - 6, thinly sliced half moons
→ For the Soup
05 -
Some sea salt and lots of fresh black pepper
06 -
Bay leaves - 2
07 -
Fresh thyme sprigs - 4
08 -
Dry white wine - 1/2 cup
09 -
Rich beef broth - 8 cups
10 -
Garlic cloves - 2 fat ones, chopped up fine
→ For the Topping
11 -
Half a cup of Parmesan, freshly shredded
12 -
Two cups Gruyère, freshly shredded
13 -
One crusty French baguette, cut into chunky slices