01 - In a small bowl, mix cocoa powder, sugar, and salt until evenly blended.
02 - Add 2 tablespoons of milk to the dry mix and whisk to form a smooth, lump-free paste.
03 - Pour remaining milk into a large glass or jug, add the chocolate paste and vanilla extract.
04 - Whisk or stir vigorously until the mixture is fully blended and homogeneous.
05 - Serve immediately over ice if preferred, garnished with whipped cream or chocolate shavings.