Melt the white chocolate over a double boiler and let it cool slightly.
In a large bowl, beat the cream cheese with an electric mixer on medium speed until smooth, about 1 minute.
Add the melted white chocolate and vanilla, mixing on low speed until combined.
In a separate bowl, whip the cold heavy cream on high speed until soft peaks form.
Gently fold the whipped cream into the cream cheese mixture using a rubber spatula.
Scoop the cheesecake batter into the prepared crusts using an ice cream scoop. Smooth the tops with a mini offset spatula.
Chill the cheesecakes in the fridge for at least 4 hours or overnight. (Keep them on the baking sheet and cover with another baking sheet turned over.)