Preheat oven to 350 degrees F. In a large bowl combine first eight ingredients (through salt).
Place eight 6-oz. custard cups in a roasting pan. Divide pumpkin mixture among cups. Place roasting pan on oven rack. Pour enough hot water into roasting pan to reach halfway up sides of custard cups. Bake 25 minutes.
Meanwhile, in a small bowl stir together flour, 1/4 cup brown sugar, and cardamom. Using a pastry blender, cut in butter until mixture resembles fine crumbs. Stir in pecans. Sprinkle mixture over custards. Bake 15 to 20 minutes more or until a knife comes out clean.
Remove custard cups from water. Cool on wire racks 1 hour. Cover loosely and chill 2 to 24 hours before serving.