French Onion Soup

Yield: 6 Servings
Categories: French, Soups
1cGruyere cheese
1/4cParmesan cheese
6slFrench bread
2tsUnsalted butter
1tbOlive oil
6Large onion
1tbFlour
42ozBeef broth
1cWater
1/3cDry red wine
1/4tsSalt
1/2tsFreshly ground black pepper
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