french onion green bean casserole well plated

Description The iconic green bean casserole is reworked with the flavors of French onion soup — caramelized onions and Gruyere cheese. Ingredients 2 tablespoons butter 2 large yellow onions, thinly sliced lengthwise salt and ground black pepper to taste 1 tablespoon sherry vinegar 2 tablespoons butter 2 ½ tablespoons all-purpose flour 2 ½ cups milk 1 pinch … Read more