Historyedit. Restaurant milkshakes are usually prepared in a steel cup, and served in a tall glass with toppings and a straw. As the steel cups are usually larger than the glasses, the remaining milkshake is served in the mixing cup with a spoon. Pictured are a strawberry and a chocolate shake, with whipped cream, sprinkles, and a maraschino cherry each. When the term milkshake was first used in print in 1. However, by 1. 90. By the early 1. 90. By the 1. 93. 0s, milkshakes were a popular drink at malt shops, which were the typical soda fountain of the period. The history of the electric blender, malted milk drinks, and milkshakes are interconnected. Before the widespread availability of electric blenders, milkshake type drinks were more like eggnog, or they were a hand shaken mixture of crushed ice and milk, sugar, and flavorings. Hamilton Beachs drink mixers began being used at soda fountains in 1. Steven Poplawski in 1. Stuffed Squash Recipe more. With the invention of the blender, milkshakes began to take their modern, whipped, aerated, and frothy form. The use of malted milk powder in milkshakes was popularized in the USA by the Chicago drugstore chain Walgreens. Malted milk powder a mixture of evaporated milk, malted barley, and wheat flour had been invented by William Horlick in 1. However, healthy people soon began drinking beverages made with malted milk simply for the taste,9 and malted milk beverages containing milk, chocolate syrup, and malt powder became a standard offering at soda fountains. In 1. 92. 2, Walgreens employee Ivar Pop Coulson made a milkshake by adding two scoops of vanilla ice cream to the standard malted milk drink recipe. This item, under the name Horlicks Malted Milk, was featured by the Walgreen drugstore chain as part of a chocolate milk shake, which itself became known as a malted or malt and became one of the most popular soda fountain drinks. The automation of milkshakes developed in the 1. In 1. 93. 6, inventor Earl Prince used the basic concept behind the freon cooled automated ice cream machine to develop the Multimixer, a five spindled mixer that could produce five milkshakes at once, all automatically, and dispense them at the pull of a lever into awaiting paper cups. In the late 1. In 1. Denton Journal in Maryland stated that For a frosted shake, add a dash of your favorite ice cream. In 1. Mansfield News in Ohio stated that A frosted beverage, in the vernacular, is something good to which ice cream has been added. Example par excellence is frosted coffeethat hot, tasty beverage made chilly with ice and frosty with ice cream. By the 1. 95. 0s, popular places to drink milkshakes were Woolworths 5 1. These establishments often prominently displayed a shining chrome or stainless steel milkshake mixing machine. These establishments made milkshakes in Hamilton Beach or similar styles of drink mixers, which had spindles and agitators that folded air into the drinks for smooth, fluffy results and served them in 1.