1 star: 10000 points
2 stars: 35000 points
3 stars: 60000 points
The chocolate fan is what makes this level hard, you have plenty of moves to pull it off, but you still have to defend the top of the fan from piling up too much chocolate to interfere with your candy crushing. Get the matches you can make off the bad and try to use the other colors to make striped and wrapped candy.
Patricia Frederick’s Tips for Candy Crush Level 157
Work as closely around the chocolate factory as you can, because the chocolate can quickly grow up to the top and block the flow of new candies.