My favourite type of apple is granny smith.  What about you?
I like to cook with granny smith apples for my apple pie, which is one of the most popular uses of the granny smith apple
It is indeed but I love to eat them raw too.  They originated in Australia in 1868 and were named after the person who cultivated them Maria Ann Smith. She had lots of children and later grandchildren and was nicknamed Granny Smith in her later years.
Granny Smith Festival
The Granny Smith Festival is an annual festival held in Eastwood, New South Wales, a suburb of Sydney, Australia. It began in 1985 and is now the largest annual event of its type in Sydney's Northern District, attracting over 80,000 people each year. The festival is held on and around Eastwood Oval on the third Saturday of October to commemorate 19th-century pioneer Maria Ann "Granny" Smith, credited with producing the Granny Smith apple and celebrated for providing the Ryde-Hunters Hill area with
cooking and eating raw) are more widely grown.
Apples can be cooked down into sauce, apple butter, or fruit preserves. They can be baked in an oven and served with custard, and made into pies or apple crumble. In the UK roast pork is commonly served with cold apple sauce made from boiled and mashed apples. Bramley apple is by far the most popular cooking apple in the United Kingdom, while Granny Smith may be the most popular in the United States and Australia (where it originated).