Goal: clear all the jelly and reach 44,000 points to complete the level.
Tips: make lots of special candies and combos and remove the marmalades, the chocolate, the licorice swirls, the licorice locks, the cream/icing and the jellies. Defuse any timed bombs are about to go off as well. Continue removing jellies until all are gone. See how this level is done in video below. Good luck.
Candy Crush Saga Level 2512 walkthrough video