Costing a whopping $80 per glass, the world's most expensive milkshake menu item is fit for a king. Available at Grill 'n' Shake -- a Cardiff, UK family restaurant that is inspired by traditional American diners -- this expensive beverage is dubbed the 'Millionaire Milkshake.'
This milkshake menu item remixes a traditional vanilla milkshake, elevating it to new heights. The recipe boasts a topping of artisanal Amedei chocolate shavings and is even garnished with edible gold flakes that add to its luxe appearance and rich flavor.
Though not an everyday menu item, this milkshake was available by special order for those with indulgent tastes and Grill 'n' Shake patrons who celebrated National Vanilla Milkshake Day earlier this week.