Things You'll Need
Instructions
Play "Viva Pinata" until you reach level 9. This is when Bart's Exchange will become unlocked for you to use, so you can turn your blackberries into jam.
Go to Costolot's General Store. It is one of several shops on Pinata Island. Costolot's General Store sells blackberries for 100 points.
Head to Bart's Exchange, and purchase either a bronze, silver or gold ticket. A bronze ticket provides only a 25 percent chance that the blackberries will be turned into jam, while the silver ticket provides a 50 percent chance. If you want to make sure your blackberries will be returned to you as a jar of jam, you must buy a gold ticket -- which carries a 100 percent guarantee.
Give Bart the ticket you purchased. You then will be able to choose the item you want to have tinkered. Choose the blackberries. After a few minutes, Bart will hand you a jar of blackberry jam.