My favorite is Kalua. It goes good in coffee this time of year.

3cups white sugar
12 rounded teaspoons Tasters Choice freeze dried coffee
4 cups water
Mix and bring to a boil, simmer for 1 hour.
Cool and stir in 1 fifth of Vodka and 3 teaspoons real vanilla

Bottle. May be used immediately. Will keep indefinitely.
Drink it in good health !