Preheat oven to 350°F (177°C). Place a 4-inch pie plate on a baking sheet.
In a medium bowl, whisk together pumpkin, brown sugar, cinnamon, ginger, nutmeg, cloves, and salt.
Stir in evaporated milk, then whisk in cornstarch, flour, and vanilla until smooth.
Fit pie crust into the pie plate. Pour the filling into the crust.
Bake for 40-45 minutes or until the center is set and the crust is lightly golden.
Cool completely at room temperature, then refrigerate at least 1 hour before serving.