Try to keep the ingredients in the center column, and keep hitting that meringue with as many striped candies as you can. If the ingredients make their way to the outside columns, you're pretty much sunk.
Remember to use one of the coconut wheels to destroy the locked candies, and another to attack the meringue on the bottom. Rolling the wheels create striped candies to destroy the bottom meringue and get rid of locked candies.
This should make the level easier and then use other combinations to destroy the remaining multilayered meringues and locked candies. Wrapped candies are useful since they blow up twice.
On a side note, a perfectly positioned wrapped candy + striped candy combo does the job simultaneously.