Homemade Kahlua (Alcoholic Homemade Liqueur Collins Glass)

Dissolve sugar in 2 cups boiling water and add corn syrup. Dissolve the instant coffee in the remaining water. Pour syrup and coffee into a gallon jug. Let it cool. Add the vodka and vanilla when cold. For best result, let the mixture "ripen" for 4 to 5 weeks.

drink_wordpress:
2 1/2 cups sugar
1 cup corn syrup
1 1/2 oz instant coffee
2 ounces vanilla extract
3 cups of boiling water
1 fifth part vodka