Mix graham cracker crumbs and granulated sugar in a bowl until evenly combined. Add melted butter and stir until the crumbs are coated and hold together when pressed.
Press the crumb mixture firmly into the bottom and up the sides of an 8-inch pie dish to create an even crust. Chill in the refrigerator while preparing the filling.
Heat heavy cream in a small saucepan over medium heat just until it begins to simmer, creating gentle bubbles around the edges. Remove from heat.
Pour the hot cream over the chopped chocolate in a heatproof bowl. Let sit for 2 minutes to soften the chocolate.
Whisk the mixture gently until smooth and glossy, ensuring all chocolate is melted and combined with the cream.
Stir in vanilla extract for added flavor. Pour the chocolate filling into the chilled crust, smoothing the top with a spatula.
Refrigerate the pie for at least 4 hours or until set and firm to the touch, allowing the flavors to meld and the filling to thicken.
Once chilled and set, spread a generous layer of whipped cream over the top of the pie, creating a soft, snowy finish.
Slice the pie with a clean knife, revealing the glossy chocolate filling and crisp crust beneath. Serve immediately for best enjoyment.
