In a small saucepan, combine the water, sugar, ginger, cinnamon, nutmeg, salt, and cloves. Give it a stir. Bring to a boil, stirring occasionally so the sugar dissolves.
Once it comes to a boil, lower heat slightly and simmer until the syrup has thickened. This will take about 15-20 minutes. Be sure to stir the syrup occasionally.
Once the syrup has thickened, remove from heat and stir in vanilla. Let cool and pour into a glass jar. Store in refrigerator up to two weeks.
To use in lattes, use about 3/4 ounce per 6 oz of hot coffee.