Peel the onions, then slice them into wings.
On a medium heat, put the butter, then add the onions and season it with salt and black pepper, cook the onions to gat it light brown, add the white wine and whiskey. If you don’t want to add alcohol you can use apple cider instead wine, and skip the whiskey.
Add the flour to onions and mix it well for 2 minutes before adding the veggie stock and the thyme. Keep it simmer on medium heat for 10 minutes.
We need some crust !! For that grilled the baguette bread ( or any kind of bread you like) and rub it with the garlic, add it on the top of soup And sprinkle it with the Emmentaler cheese ( or any melted cheese of your choice), put it the pre-heated oven on 200 for 10 minutes till become golden brown.