Oreo No Bake Cheesecake

Bahan-bahan (12 porsi)

• ¼ cup melted butter
• 50 Oreo cookies (2 300g packages, divided)
• ½ cup white chocolate chips
• 24 ounces cream cheese (3 250g packages)
• 1 ½ cups powdered sugar
• 1 ¼ cup heavy whipping cream (divided)