Kahlua
["4 c. sugar", "3 c. water", "1 c. boiling water", "2 oz. instant coffee (1/4 c.)", "26 oz. (3 1/4 c.) vodka", "2 Tbsp. vanilla or 1 vanilla bean"]
["Boil sugar and water 20 minutes. Slow boil. Cool 20 minutes. Add instant coffee to boiling water; cool. Stir together vodka and vanilla."]
["sugar", "water", "boiling water", "instant coffee", "vodka", "vanilla"]