Cadbury Dairy Milk Silk Bubbly chocolate is high on sugar serving of the chocolate and does not mention the cocoa quantity in it. The high sugar content can be harmful if consumed frequently for the health of kids and adults Cadbury dairy milk silk bubbly has the same smooth flavour that you would expect from cadbury’s silk with the added twist of bubbles (completely non-flavour altering). It is a milk chocolate, so it is on the sweeter, milkier side.