For the crust grind up the cookies in a food processor until fine crumbs.
Add the melted vegan butter & process until it is even & resembles wet sand
Press this mixture into 1- un-greased pie plate (9") or 6- un-greased 4" tart molds then refrigerate until needed
Prepare the berry compote by cooking the berries over a medium heat with the optional sugar. Stir often to avoid burning.
The berries will start to break down & get syrup-y especially if you use frozen berries. If you are using fresh berries you may have to add a few tablespoons of water to help them cook down.
Remove from heat & let cool (it will thicken as it cools)
Prepare the custard by combining plant milk, sugar & cornstarch in a medium sauce pot over medium to high heat & bring to a boil stirring constantly to avoid scorching the bottom .
Once it starts to bubble remove from the heat & add the vegan butter & white chocolate, stir to melt evenly throughout. Add the vanilla extract.
Pour into the tart shells then refrigerate for about 20minutes to cool & set.
Top with the cooled berry compote & whipped cream
Serve with shaved white chocolate *optional.