Preheat your oven to 350 degrees Fahrenheit.
Blind bake the pie crust until golden and fully baked, about 10-12 minutes.
Allow it to cool completely.
Cream together the softened butter and sugar with a mixer until fluffy and light, which should take about 3-4 minutes.
This creates a smooth filling.
Add melted chocolate and vanilla extract to the butter and sugar mixture.
Mix until thoroughly combined and the chocolate is well incorporated.
Add one egg at a time, beating well after each addition.
Ensure the filling is smooth and silky before adding the next egg.
Pour the completed chocolate filling into the cooled pie crust.
Chill the pie in the refrigerator for at least 3-4 hours or until the filling sets.