O’boy has been on the market since 1960 and is the most popular chocolate drink powder in Scandinavia - a favourite with children of all ages from northern Norway to southern Denmark. The debate rages on how to mix it for optimal taste and texture - there is no definitive answer, so we suggest you try it yourself. Milk first? Powder first? Cold or hot milk?You can also try sprinkling it on ice cream or using in milk shakes.