In a large bowl, beat cream cheese and sugar until smooth.
Beat in white chocolate, flour, cream, lemon juice, lemon zest and vanilla.
Add eggs; beat on low speed just until combined; pour into crust.
Place pan in a large baking pan; add 1 inch of hot water to larger pan.
Place in oven and bake 65 - 85 minutes or until center is just set and top appears dull.
Remove from oven and take springform pan out of water bath.
Cool on a wire rack 10 minutes.
Carefully run a knife around edge of pan to loosen; cool 1 hour; refrigerate overnight.
When ready to serve, remove from refrigerator and take sides off the springform pan.
Garnish with white chocolate and lemon zest strips, if desired.