Preheat
oven to 350°F.
On baking sheets toast pecans
until fragrant, 6 minutes.
Cool 5 minutes; set aside.
Butter and flour 8 mini (1
cup) Bundt pans.
Whisk together brown sugar, pumpkin,
oil, eggs, sour cream, molasses and 1/4 cup rum.
Combine flour, pie spice,
baking powder, soda and salt; with spatula fold into sugar mixture.
Fold in cranberries and
reserved nuts.
Divide batter among pans.
Bake 20 to 22 minutes or until
toothpick inserted into center comes out clean.
Cool in pans on rack one
minute.
Remove from pans; brush with
remaining run.
Cool completely on rack.
Combine confectioners' sugar
with enough cream to form thick pourable mixture.
Drizzle over cakes.