The quest that T.Rickster offers is called The Great Escape. It requires the following steps:
- Receive the Upgraded Cake Blueprint from T.Rickster.
- Craft/acquire a Cake.
- Travel to a Gas Station or Mechanic and find a Stealy Wheely Automobiley.
- Use the Upgraded Cake Blueprint to craft the Upgraded Cake.
- Return to T.Rickster and talk to him to give him the Upgraded Cake.
- Receive your reward.
He sells you berries after you complete this quest.