Instant Pot French Onion Soup

Bahan-bahan (4 porsi)

• 3 tablespoons unsalted butter
• 3 very large yellow onions (or Spanish onions, halved and sliced 1/4 inch thick (about 2 1/2 pounds))
• 2 cloves garlic (minced (about 2 teaspoons))
• 2 springs fresh thyme
• 1 bay leaf
• 1/2 cup dry red wine (such as Cabernet Sauvignon)
• 4 cups beef bone broth (or beef stock)
• 4 cups beef stock
• 3/4 teaspoon kosher salt
• 1/2 teaspoon freshly ground black pepper
• 8 to 12 slices small baguette (cut about 3/4-inch thick)
• 4 ounces freshly grated Gruyère cheese (or Swiss, white cheddar, fontina, and gouda, while less traditional, are also delicious)