Double wrapped candy combinations work wonders against the frosting at the bottom-right of the board.
Make striped + wrapped combinations above the isolated cells marmalade and frosting, at the start of the game. Near endgame, use striped + wrapped combinations above and to the side of the isolated cells, to help clear the diagonal path for the ingredients.
Optionally, you may find the use of certain boosters helpful in this level.
The starting boosters are of limited use: it depends where they land on the board. Players who only have a few of these may prefer to save them.
But if you use a wheel, try to use them wisely (it may respawn) or make combinations.
The Free Switch and Lollipop Hammer boosters can be of help at the penultimate move if the player has enough of them and can see a way to pass the game using them. Try to be clever with switches and hammers: look for ways to cause a cascade to help clear your path.