I remember eating Billionaire pie with my grandmother and the crust wasn's a pie crust. It was more of a vanilla wafer crust. Does anyone agree? Does anyone have this recipe? I would appreciate as I would love to make this pie as a special treat for my grandfather, since my dear grandmother passed away 2 years ago and Billionaire pie still holds a special place in our memories of grandma. Thank you for your time :)

Melanie