Preheat oven to 350°F (175°C). In a medium bowl, mix crushed cookies with melted butter. Press into a 9-inch pie pan and bake for 8–10 minutes. Let cool.

1. In a saucepan, melt chocolate, butter, and heavy cream over low heat until smooth. Remove from heat and cool slightly.
2. In a bowl, whisk together eggs, sugar, and vanilla. Slowly whisk in the melted chocolate mixture until well blended.
3. Pour the filling into the cooled crust. Bake for 30–35 minutes, until edges are set and center jiggles slightly.
4. Let the pie cool on a rack, then refrigerate for at least 2 hours or overnight.
5. Before serving, top with whipped cream. Garnish with optional nuts, chocolate shavings, or mini chips.
6. Slice with a warm knife for clean cuts. Serve chilled or at cool room temperature.