Apple pie in American culture

In the English colonies the apple pie had to wait for carefully planted pips, brought in barrels across the Atlantic, to become fruit-bearing apple trees, to be selected for their cooking qualities, as apples do not come true from seeds. In the meantime, the colonists were more likely to make their pies, or "pasties", of meat rather than of fruit; and the main use for apples, once they were available, was in cider. But there are American apple-pie recipes, both manuscript and printed, from the eighteenth century, and it has since become a very popular dessert.
A mock apple pie made from crackers was apparently invented by pioneers on the move during the nineteenth century who were bereft of apples. In the 1930s, and for many years afterwards, Ritz Crackers promoted a recipe for mock apple pie using its product, along with sugar and various spices.
Although apple pies have been eaten since long before the discovery of America, "as American as apple pie" is a common saying in the United States, meaning "typically American". The dish was also commemorated in the phrase "for mom and apple pie" - supposedly the stock answer of American soldiers in WWII, whenever journalists asked why they were going to war.
Advertisers exploited the patriotic connection in the 1970s with the TV jingle "baseball, hot dogs, apple pie and Chevrolet". There are claims that the Apple Marketing Board of New York State used such slogans as "An apple a day keeps the doctor away" and "as American as apple pie!", and thus "was able to successfully 'rehabilitate' the apple as a popular comestible" in the early twentieth century when prohibition outlawed the production of cider.