Saffron is the world’s most expensive spice. Tens of thousands of strands are needed for one ounce of saffron. Fortunately, very little goes a long way. Flavourful in dishes like Spanish Paella, French Bouillabaisse, and Italian Risotto Milanese. Used in Indian Biryani and in Persian rice dishes. Saffron can be added to mayonnaise for grilled shellfish, such as shrimp or squid.