Objective: How to make whipped cream at home?

Which of the following solutions is more sound in terms of naive physics reasoning?

Choose your answer from: -Fill jar with very cold cream, put on lid and shake for 3 min. Then whip in 2 tablespoons of sugar into it.. -Fill jar with very cold cream,take off lid and shake for 3 min. Then whip in 2 tablespoons of sugar into it..
Fill jar with very cold cream, put on lid and shake for 3 min. Then whip in 2 tablespoons of sugar into it.