Preheat oven to 375°F (190°C). Prep pie crust and baking sheet with parchment paper.
Whisk cinnamon, cardamom, ginger, cloves, nutmeg, pepper. Set aside 1 teaspoon for garnish.
Mix pumpkin puree + sugar. Add spice blend, then eggs one by one. Stir in cream, vanilla, salt.
Roll crust, fit in pan, crimp edges. Pour filling ¾ full. Brush edges with melted butter.
Bake 50–60 minutes until edges set, center jiggles. Cover crust edges if browning too fast.
Cool completely on wire rack 2–3 hrs before serving.
(Optional) Toast spices before mixing for deeper flavor.