Pour coffee into a large pitcher. Then, pour water overtop and stir to combine. Allow coffee to sit at room temperature for 8-18 hours. The longer the coffee steeps, the more flavorful it will be.
Once it's steeped, pour coffee through a fine mesh strainer and into another pitcher, discarding the coffee grounds. NOTE: you may need to do this twice to make sure there aren't any remaining coffee grounds in the coffee. Place the pitcher in the refrigerator for a few hours or overnight, then enjoy it cold either as-is or with a dash or milk/cream.
*The higher quality coffee you use, the better your cold brew will taste!