Granny Smith

Granny Smith is an elderly Earth Pony who is also the grandmother of Applejack, Big Macintosh and Apple Bloom, and a recurring character in the series. Her cutie mark is an apple pie. Like the rest of the Apple family, her cutie marks a by-product of apples, the family's primary crop.

Depiction in the series
Granny Smith, named after apple cultivar, appears first in Friendship is Magic, Part One as the very last member of the family that's introduced to Twilight Sparkle. When she is first seen, and in most subsequent appearances, Granny's speech is not very clear. When she first gets out of her rocking chair, she wakes up and mumbles a few words that sound vaguely like "What?" and "Soup's On!" then feebly walks over to the other phones.She mutters "soup's on" when she passes Scootaloo.