Combine caraway seed, fennel seed, cumin and vodka in a jar or bottle. Cover tightly and let steep for 2 weeks in a cool, dark place. Shake jar occasionally. When steeping period is complete, strain and filter the liquid.
Combine sugar and water in a heavy saucepan. Bring to a boil over medium heat. Reduce heat and simmer until sugar has completely disolved, about 3 minutes. Remove from heat and let cool to room temperature.
Alternatively just use maple syrup for some Canadian flair.
Combine sugar or maple syrup with the filtered vodka mixture. Pour into bottles and cap tightly. Let age at least 1 month before serving.