For the cinnamon-pecan syrup, in a medium saucepan combine the water, the 1 cup granulated sugar, the piloncillo, lemon peel, cinnamon, and cloves. Bring mixture to boiling over high heat; reduce heat to medium and simmer, uncovered, until sugars are dissolved and mixture is thickened and syrupy, stirring frequently. Cool for 15 minutes. Strain to remove cinnamon and cloves. Stir in raisins and nuts; set aside (mixture will continue to thicken).