Beluga Caviar is the most expensive food item in the world, costing up to USD 5,000 per kilogram. It usually ranges from purple to black, the palest being the most expensive. It should be served chilled and never at room temperature, in a dish of ice. Use utensils made of glass, plastic or ceramic to preserve the taste. It is traditional etiquette to eat caviar in small bites. You can also eat it on unsalted crackers or bread, or on small traditional Russian pancakes called blini. You can garnish it with fresh herbs like parsley, dill or sour cream.