Rack of lamb is a popular dish cooked at home and in restaurants all across the country. From fine dining to family meals, this cut of meat is an elegant choice for a celebratory meal. But what if you're serving rack of lamb with a sauce? Does the sauce have to be something fancy or complicated?The right sauce will complement your meal and enhance the flavor of your main course without overpowering it. For example, pairing steak with a hearty brown sauce will make it taste too heavy. Instead, try pairing steak with a creamy-based sauce or one that's light and tangy.