cup instant espresso granules
(14-ounce) can sweetened condensed milk
Place the espresso granules and sugar in a bowl and stir in the boiling water until dissolved. Stir in the vanilla bean seeds.
Whisk in the sweetened condensed milk and cold water until combined. Pour the milk into a pitcher. Stir in the espresso mixture and the vanilla extract. Chill in fridge for about an hour. Serve over ice.