Wow! This is by far the most flavourful and tender prime rib soup we have ever tasted! Cooking this soup low and slow has proven winning results. What a perfect way to utilize those leftover prime rib bones from Sunday dinner. This soup is so hearty and packed with the most delicious flavours! We strongly encourage you to try this recipe out if possible! Further, found this dish to naturally pair well with mini garlic toasts; perfect to lap up any soup left in the bowl!