In a food processor, combine the dried plums, toasted pecans, granulated sugar, cinnamon, nutmeg, and cloves. Process until the mixture is finely chopped and starts to clump together.
Add the water to the food processor and pulse until the mixture forms a cohesive dough. If it seems too dry, add another tablespoon of water at a time until it reaches the desired consistency.
Place the powdered sugar in a shallow bowl. Roll the plum mixture into small balls, about 1 inch in diameter. Then, roll each ball in the powdered sugar until evenly coated.
Place the sugar plums on a parchment-lined baking sheet and let them set for at least 30 minutes, or until firm. Store in an airtight container at room temperature for up to a week.
Notes
These sugar plums are best enjoyed at room temperature. They make a wonderful homemade gift during the holidays.