3 tablespoons milk (any kind, but preferably whole)
1 teaspoon vanilla extract or almond extract (optional)
Place the coffee or espresso powder in a heatproof glass or mug, stir in the hot water until the coffee is dissolved, and cool to room temperature, 15 to 20 minutes.
Place the condensed milk and regular milk in the bottom of a clear glass and stir until smooth. Add a good amount of ice to the glass, then add the coffee and vanilla or almond extract, if using. Stir to incorporate the milk and coffee to your liking (it’s okay if the coffee is a little stronger at the bottom!).
*If you don’t have condensed milk, combine 5 tablespoons half-and-half or heavy cream with 2 tablespoons of sugar in the microwave for 30 seconds, then stir to dissolve the sugar and cool for 10 minutes. Use that instead of the condensed milk/milk combo.