The recipe itself has been in existence since the early 1800s when stale bread was used. Two things gave rise to this bake's popularity in the 1930s– the launch of Ritz crackers in 1934, and the sky-high prices of apples. The crackers were much more affordable than fresh fruit. The pie can be made with either crushed crackers – which give a more pureed filling version, or whole crackers which mimic the look and texture of sliced apples more closely.