Combine first 9 ingredients in a pot over medium heat. Bring mixture to a simmer, being careful not to boil. Reduce heat to low; cover and simmer for 15 minutes. Remove from heat, and stir in sugar. Stir until sugar dissolves. Strain mixture, and serve immediately, or gently reheat before serving. (If you prefer a stronger flavor, steep spices longer before straining.) Garnish, if desired.
Note: For a nonalcoholic version, use water or orange juice, and substitute 3 cups Concord grape juice for the wine. Omit sugar, and follow glögg procedure.