Soupe à l'Oignon Gratinée (French Onion Soup) Recipe

Try this French bistro classic for a quick and easy winter treat. Although this soup's origins are disputed, many believe that it was invented by King Louis XIV who, when coming home late from hunting, would only find bags of onions, butter, and Champagne in the kitchen, thus bringing to fruition the base for this traditional French soup.  Today it is topped with thick baguette slices and melted cheese for a perfectly rounded-out dish.