AERO Collection Egg is a giant smooth creamy milk chocolate egg with 3 uplifiting, bubbly AERO Chocolate Bars. The 2 AERO Milk Chocolate Bars are made using purely milk chocolate and the AERO Peppermint Chocolate Bar combines refreshing peppermint-flavoured bubbles and smooth milk chocolate perfectly together. What makes AERO so deliciously special? It's the chocolate bubbles that are designed to melt effortlessly in your mouth. AERO is a much-loved chocolate worldwide and is renowned for its unique bubbly texture.