Serve coffee over ice with milk and simple syrup, adding 1 teaspoon at a time, to taste.
for the simple syrup
Combine sugar and water in a small saucepan over medium heat, stirring until the sugar has dissolved.
Let cool completely and stir in vanilla extract; set aside in the refrigerator until ready to serve.
Notes
Good quality beans go a long way. Grab a bag of beans from your favorite local coffee shop.
Use coarse ground coffee beans. Finely ground coffee beans can yield a gritty cup of coffee. Purchase coffee beans that have already been coarsely ground or grind the beans at home using a grinder like this or this.
Room temp or cold coffee is key. Iced coffee is meant to be cold. Skip the hot coffee, making sure to use cooled down coffee to start. Adding ice to already hot coffee will yield undesirable watered down coffee.
Start the night before. This is a great recipe to make ahead of time. Brew the coffee the night before, storing in the fridge overnight.
Store simple syrup in the fridge. Always store simple syrup in an airtight container in the refrigerator to extend shelf life, keeping up to 1 month.