What was once the national drink of Scotland?

The national drink of Scotland is Scotch whisky. It has a long and rich history in the country, with distilleries dating back to the 15th century. Scotch whisky is made from malted barley, water, and yeast, and is aged in oak barrels for a minimum of three years. It has a distinctive smoky flavour due to the malting process, and is typically enjoyed neat or on the rocks. Scotch whisky is a popular export from Scotland, and is enjoyed around the world.