Mix 3 cups water with 4 cups sugar, bring to boil and boil for 20 minutes. Set aside, add 1 whole vanilla bean split. Let mixture cool. Add 2 oz instant coffee to 1 cup boiling water. Stir until dissolved. Set aside and cool. When above are cool (important) put into a half gallon container and add the vodka. Let age for at least 3 weeks.