Level 230 is the fifteenth and last level in Crunchy Castle and the fifty-ninth ingredients level. To pass this level you must bring down 8 hazelnuts and score at least 80,000 points in 55 moves or fewer. When you have extra moves left in this level, Sugar Crush will activate striped candy and score you additional points.
8 hazelnuts to collect and not a lot of candy around. Break through the 2-layer and 3-layer meringue walls on every move to start off with, and try to force a stalemate if you're stuck with moves in the middle that aren't crashing into the walls. As you get more candy on the board, you'll have plenty of chances to make special candies: wrapped candy + wrapped candy works really well to crush through the walls.
It's better to spend your moves crushing through the walls than it is swapping ingredients across columns: if you get a chance to swap a nut into a clear column, take it, but don't waste moves setting it up. Blast your way to freedom with wrapped candies and move your way out of the Crunchy Castle. However, make sure none of the ingredients get stuck above the chocolate spawner.