Place cardamom and cloves on a 6 inch cheesecloth square, tie with string.
Bring spice bag, chopped peach, and next 5 ingredients to a boil in a large saucepan. Reduce heat; simmer, stirring occasionally, 10 minutes or until peach is tender. Remove and discard spice bag; cool peach mixture.
Process peach mixture in batches in a blender or food processor until smooth; stir in yogurt and dice ginger. Cover and chill; garnish with mint and peach slices, if desired. Yield: 6 cups.
*Substitute 1/8 teaspoon ground cardamom seeds, if desired, stir it in with cinnamon and ginger.