Preheat your oven to 350°F (or 177°C), line a muffin pan with 10 liners, or grease it directly with non-stick spray or butter. Make the crust mixture and press it firmly into each of the liners. Pre-bake in about 5 minutes.
Cream your cream cheese with sugar using a mixer. Add sour cream, lemon juice, vanilla extract, and egg, mixing at medium speed until fully combined.
Divide that batter evenly among the liners, filling each about three-quarters full.
Bake the mini cheesecakes for 18 to 20 minutes until the edges settle and the center parts have only a slight jiggle.
Let the cheesecakes cool on a rack for half an hour at room temperature, then transfer them to the fridge to chill for 2 hours (or overnight for best results). Don't worry if they sink a bit in the center.
Before serving, add your desired toppings, such as fresh fruit, chocolate drizzle, or whipped cream. Enjoy!