Place the Vietnamese coffee filter on top of a mug or heat-proof glass so the coffee has somewhere to collect. If you don’t have a Vietnamese coffee filter, you can prepare the coffee using a French press.
Unscrew the press from inside the filter. Add 2 tablespoons dark-roast ground coffee. Screw the press back on so that it compacts the coffee grounds. It should feel snug when you try to turn it, but still have just a little give so the coffee has room to bloom.
Pour just enough hot water into the coffee filter to soak the grounds. Let it sit for 30 seconds.
Add enough hot water to fill the filter. Place the cover on the filter and let the coffee brew. It should take about 5 minutes for the coffee to finish brewing.
Add the sweetened condensed milk to a tall glass. Stir in the brewed coffee. Add the ice. Serve.
Notes
The preferred coffee for this is 1 tablespoon of Trung Nguyen Premium Blend and 1 tablespoon of Café Du Monde Coffee with Chicory. If you don’t have that, you can use 2 tablespoons of regular dark-roast coffee, such as French roast.