Who invented the chocolate malt?

The chocolate malt was popularized in the 1920s, particularly by the company Palmer's, which is credited with creating the first chocolate malted milkshake. While there isn't a single inventor, the drink's combination of chocolate syrup, malt powder, and milk gained widespread popularity, especially in soda fountains and diners. Over time, various recipes and adaptations emerged, solidifying its status as a classic treat.