Focus on actually bringing down the ingredients with match-4/5 candies and don’t get destructed from the chocolate spread. A video that shows you how to pass Candy Crush Level 62 can be found here:
Patricia Frederick’s Tips for Candy Crush Level 62
Be prepared to battle chocolate after you unlock the candies. Vertically striped candy matches can propel the ingredients out through the chocolate if need be, but do not allow the chocolate to grow across the top and stop the flow of new candies.