19 inch pie crustcan use my recipe here: or use a frozen one
Preheat the oven to 325 degrees.
In a small bowl, whisk together the eggs, vanilla, and salt until smooth and fully combined.
Heat a small saucepan to medium heat, then add the butter and chocolate. Continuously stir the mixture for about 4-6 minutes, or until both ingredients have fully melted and come together into a smooth sauce.
Remove the saucepan from the heat, add in the sugar, and stir to dissolve the sugar completely.
Slowly add the egg mixture to the chocolate and whisk well to mix everything evenly.
Pour the filling into the parbaked pie crust, carefully transfer to the middle rack in the oven, and bake for 40-50 minutes, or until the pie puffs up, the surface cracks, the crust is browned, and the filling is mostly firm all the way through.
Place the pie on a cooling rack and cool to room temperature before serving.
NOTE: If you prefer a deeper brown, crispier crust, either pre-bake the crust for about 10 minutes or add an egg wash before baking.