When you make a match, candies will fall into the spaces made. Some of the falling candies will make new matches and these are called 'cascades'. These are a great way to help toward hitting your scores or reaching your target goals.
If the falling candies form a sequence of matches, you’ll see words like ‘Sweet’, ‘Tasty’, ‘Divine’ and ‘Delicious’ appear on the board.
Another thing to know is that cascades can often be the trigger for must-have items to drop. If you're playing a level and waiting for an order ingredient such as a cherry or hazelnut, try to trigger these cascades as often as possible. They're the best way to increase your chances of grabbing that missing item!
Pro tip: Make matches low on the board so that those rows above have a natural chance of triggering matches.