01 - Preheat the oven to 325°F. Line a 12-cup muffin tin with paper liners.
02 - Place one vanilla wafer cookie, flat side down, in the bottom of each liner.
03 - In a large bowl, beat cream cheese and granulated sugar until smooth and creamy.
04 - Add eggs one at a time, mixing well after each addition.
05 - Mix in vanilla extract, sour cream, flour, and salt until just combined.
06 - Divide the batter evenly among the muffin cups, filling each about 3/4 full.
07 - Bake for 16–18 minutes, or until centers are just set and slightly wobbly.
08 - Remove from oven and let cool in the pan for 10 minutes. Then transfer to a wire rack to cool completely.
09 - Mix sour cream and powdered sugar until smooth. Spoon a dollop onto each cooled cheesecake and garnish with berries or fruit preserves.
10 - Refrigerate for at least 30 minutes before serving.