Step 1: INGREDIENTS
3 medium red onions
3 medium yellow onions
1 cup of vegetable broth or beef stock...
1 tablespoon of balsamic vinegar
1 oz of cooking sherry
1 tablespoon of granulated sugar
1 loaf of french baguette
cheese for the topping...Gruyere, cheddar or any other good melting cheese
Step 2: SAUTE THE ONIONS
The mixture will resemble a very thick puree with whole pieces of onions and a paste like consistency.