Gruyère is a traditional, firm Swiss cheese made from whole cow's milk, known for its pale-yellow color, dense texture, and natural brownish rind. It offers a rich, creamy, and complex flavor profile that starts out sweet and fruity when young, but develops deep, earthy, and nutty undertones with tiny, crunchy protein crystals as it ages. Because it contains a high ratio of fat to moisture, Gruyère is famous for its incredible melting ability, dissolving smoothly without splitting. This makes it the quintessential choice for classic dishes like Swiss fondue, French onion soup, potato gratins, and Croque Monsieur sandwiches.