4 cups brown sugar
3 1/2 cups water
1/2 cup instant coffee granules
1 teaspoon vanilla extract
1 (750 milliliter) bottle vodka
In a saucepan, combine brown sugar, water and instant coffee. Bring to a boil, then let simmer 15 minutes. Remove from heat, and cool completely.
When coffee mixture is completely cool, stir in vanilla and vodka. Pour into dark colored bottles, and store in the refrigerator.