Using a phin filter (traditional Vietnamese method) or pour-over filter: Place the phin filter on top of your cup. Add ground coffee to the phin's well and pack it down firmly with the accompanying press. Pour a tiny bit of hot water into the well, allowing the grounds to absorb it for 15 seconds, then continue filling the well with hot water. Cover the filter with the accompanying lid (optional).
Once the water has fully drained through the filter, your coffee is ready.
Alternatively, brew about 2-3 ounces of strong coffee using your preferred method (e.g., espresso machine, drip coffee maker, French press, etc.).