Start by sifting 1-2 teaspoons of matcha powder into a large mug or a spouted bowl using a fine mesh strainer. Pour 2-3 tablespoons of hot water (160-175°F or 70-80°C) over the sifted matcha.
Using a matcha bamboo whisk (chasen) or a small regular whisk, mix the matcha and hot water in a gentle circular motion until a smooth, thick paste forms, ensuring that no lumps remain.
Once the paste is smooth, whisk the matcha vigorously in an up-and-down motion for about 30 seconds, or until the mixture becomes frothy and the matcha is fully dissolved.
Heat the milk in a saucepan over low heat or in a microwave-safe container until it reaches your desired temperature. Be careful not to let the milk boil.
Slowly pour the frothed milk over the matcha mixture in a mug, holding back the foam with a spoon. Once the milk is poured, gently spoon the foam on top of the latte.