Combine the two sugars, water, allspice, ginger, cloves, nutmeg and cinnamon in a 4-cup glass measure. Microwave on high 3 minutes; stir. Add pumpkin and microwave on HIGH 5 minutes. Let cool and refrigerate. Keeps several weeks in refrigerator or can be frozen.
Recipe by In Good Taste at http://ingoodtaste.kitchen/spiced-pumpkin-butter/