Barley grains, water, honey or sugar (optional).
Preheat a pan over medium heat. Add the barley grains and roast it for 5-8 minutes. Until they are golden brown.
Boil around 2 cups of water in a large pot. Add the roasted barley grains. Simmer for 10-15 minutes.
Strain the tea into cups using a tea strainer and enjoy!