In a bowl, beat the cream cheese until light and fluffy with an electric beater or hand whisk. Mix in the sour cream, vanilla, sugar, egg, lemon juice. Swirl in jam at this time.
CAUTION: Microwave until you see it start to bubble in the center, and then stop cooking. This will take seconds, maybe 20 or more. Take it out and check it. Microwave for short intervals until you see the edge of the cheesecake firm but make sure the center is jiggly. If it is allowed to bubble and cook further, the mixture will "break" and you'll need to start over. Make a note of the successful cooking time for your microwave.
Take out of the microwave and let cool to room temperature and then refrigerate until fully chilled, about 2 hours. If any liquid has formed, carefully pour out. Sprinkle with graham cracker mixture and top with any topping of your choice. Enjoy!