Sour cream is a staple in many professional kitchens. It can be used as a quick burst of tanginess to bring a dish to life, it adds a little decadence to soups, and even finds a home in certain cheesecakes and desserts.
When you're making yogurt, you need milk and some kind of "starter" that contains living bacterial cultures. It's these cultures that turn plain old milk into yogurt.
Juicy, cheesy and delicious mushroom burgers topped with caramelized onion and fresh arugula. There's just something about the combination of flavors that makes for an exquisite, taste-bud delighting meal.