2 brasserie Recipes

unsalted butter, peanut oil, onions, peeled , halved vertically through the root, and thinly sliced, fine sea salt, all-purpose flour, chicken stock, dry white wine , such as sancerre, freshly ground white pepper, several sprigs fresh thyme , wrapped in cheesecloth, several fresh or dried bay leaves, baguette, toasted, swiss gruyere, freshly grated, equipment : 1 (10-quart) stockpot; 4 ovenproof soup bowls

butter, divided, yellow onion, sliced very thinly, white wine, heavy cream, granulated sugar, water, lemon juice, freshly squeezed, sherry wine vinegar, all-purpose flour, dark chicken stock or 6 cups beef stock, salt and pepper