Creamy Peanut Butter Pie

crushed chocolate cookie crumbs

to 4 tablespoons of melted butter , more or less, or just enough to moisten the crumbs

heavy whipping cream

overflowing teaspoon of pure vanilla extract

packed light brown sugar

creamy peanut butter

( 8 ounce ) block of cream cheese , softened to room temperature

finely chopped peanuts, for garnish

Chocolate syrup , for garnish