Ingredients for 4 people :
-250 gr [1/2 lb] brown onions
- 80 gr [3 oz] swiss cheese
- 30 gr [1 oz] butter
- 3 spoons olive oil
- 1 glass white wine (ar.100 ml)
- 1 Tbspoon plain flour
- 4 slices toasted farmhouse bread
- salt & pepper

Recipe :

1-Pre-heat oven on grill position ; grate the cheese.
2- Melt butter & oil in a large thick saucepan, medium flame, and brown the onions for about 5 minutes.
3- When they are softer, sprinkle the flour on them and stir until blended. Let it on fire for 5 more minutes then pour the wine and the warm water (around 1 liter / 2 pints). Add salt & pepper and simmer for 15 to 20 minutes reducing flame.
4- Pour the soup evenly in the soup tureens and float the toasts in each. Top with the grated cheese.
5- Let it melt and brown in the oven for a few minutes and serve right away.

TRICK : you can prepare steps 2-3 several hours ahead and just finish steps 1-4-5 after re-heating at the very last minute...