2 c. water
3 2/3 c. sugar
1/2 c. water
6 tbsp. instant coffee
2 tbsp. glycerine
2-4 tsp. pure vanilla extract
1/5 bottle vodka

Boil first 2 ingredients into a syrup, approximately 10 minutes. Set aside to cool. Mix next 4 ingredients together, then add mixture to cooled syrup. Mix well and add 1/5 bottle of vodka. Pour into 1/2 gallon bottle. Mix well and enjoy.

NOTE: Do not use freeze-dried coffee or imitation vanilla.