Preheat the oven to 350°F (175°C) and place the pie crust in a dish.
In a bowl, whisk together sweet potatoes, brown sugar, heavy cream, eggs, vanilla, cinnamon, nutmeg, and salt until smooth.
Pour the mixture into the pie crust and smooth out the top.
Bake for 45–50 minutes, until the center is set.
Let the pie cool completely before adding the coffee whipped cream.
For the whipped cream, whisk together heavy cream, powdered sugar, instant coffee, and vanilla until soft peaks form.
Spread or pipe the whipped cream over the cooled pie.
Slice, serve, and prepare to have your taste buds amazed.