The liquorice swirls can overpower the board within the first few moves and nearly halt mobility. Therefore, try to clear liquorice swirls and create special candies to take them out. While clearing the liquorice swirls, focus on bringing the ingredients down to the bottom.
The liquorice swirls will spawn with an almost 100% rate if you do not destroy any liquorice swirls during your move. As long as you clear some liquorice each move, none will spawn. However, you also have to think of getting the ingredients down. Use small moves so that not too much liquorice is spawned.
It is also best not to make a giant cascade before clearing the liquorice swirls, as the liquorice swirls can easily take up most of the board space.