In a microwave-safe bowl, combine the white chocolate together with 2 tablespoons of heavy whipping cream.
Microwave at 50% power for 30 seconds. Gently stir and return the microwave for another 30 seconds (50% power). At this point, the chocolate should be melted. Stir until it’s completely smooth. Set aside to cool.
Prepare the whipped cream. Place a metal mixing bowl in the freezer for 5-10 minutes. Pour the heavy whipping cream into the chilled bowl and use an electric mixer to beat the heavy cream on medium-high speed until the cream thickens. Slowly add the powdered sugar and continue beating on high speed until stiff peaks form. Set the whipped cream aside.
Beat the cream cheese on medium-high speed until it’s completely smooth and free of lumps, scraping down the bowl as needed.
Add the granulated sugar and continue beating until it’s well incorporated.
Next, add the melted white chocolate and beat into the cream cheese until it’s well combined.
Finally, add the lemon zest and the prepared whipped cream and fold into the cream cheese, mixing from the bottom to the top until it’s completely smooth.