Preheat oven to 350º F.

Mix together graham cracker crumbs, sugar and melted butter until combined. Press into a 9-inch pie plate and up the sides to make the crust. Bake for 7-8 minute until golden brown.

Reduce oven temperature to 325ºF.

Meanwhile heat heavy cream in the microwave for 1 minute, until super hot. Pour over a bowl of semi-sweet chocolate and let it stand for 5 minutes. Whisk until melted and smooth.

Quickly whisk in 1 egg at a time until fully incorporated. Add the vanilla and mix until combined.

Pour into baked crust. Bake for 22-25 minutes until it is mostly set and no longer jiggles when you lightly shake it. Remove from the oven and cool completely.

To serve top pie with marshmallows and put under the broiler for 2-3 minutes until golden brown. You can also use a kitchen torch if you have one.