Cream cheese in a stand mixer with paddle, add sour cream sugar and vanilla extract. Mix on medium speed till blended, scrape down bowl.

Add eggs one at a time, scraping bowl after each addition. Mix on high speed till fluffy.

Melt 1 stick of sweet cream butter in saucepan. Add one cup of sugar. Medium heat until the sugar turns brown add a couple drops of fresh lemon juice to retard the carmelization process. Add a little bit of heavy cream until the caramel comes together. Let cool down in refrigerator.

Pour cream cheese mixture into 9" prepared graham cracker crusts. Spoon in caramel and swirl with a knife. Bake at 350°F in a water bath for 35 to 40 minutes. Open oven door and let cool inside oven for an additional 10 minutes before removing from oven. Let them cool on a rack.