In a heavy bottomed saucepan, melt the butter. Add sugar, pumpkin puree, cinnamon, ginger, cloves, nutmeg, and allspice. Bring the mixture to a boil, and let boil 2 minutes. Remove from heat.
Stir in oatmeal and vanilla. Stir to combine. Drop by large spoonfuls onto silpats or aluminum foil or use a cookie dough scoop to form mounds. Allow candy to cool.