Preheat your oven to 350°F. Place your pre-baked pie crust in a pie dish and set it aside to cool while you prepare the filling.

In a large mixing bowl, cream together the softened butter and sugar until light and fluffy using a mixer on medium speed.

Add the eggs one at a time, beating well after each addition. Then add vanilla extract and mix until smooth and creamy.

Add flour and salt to the mixture. Beat on low speed until fully combined. Slowly pour in the heavy cream and continue mixing until silky.

Smooth the top after pouring the contents into the prepared crust. Bake for 40–45 minutes or until golden brown and slightly set in the center.

Allow the pie to cool completely on a rack before slicing. Serve chilled or at room temperature for the best texture and flavor.