Who is Hettie Sue ? Hettie Sue is the best grandma ever! She is the inspiration behind Hettie Sue’s Old Fashion Bakery. Except for one thing. Our baking is 100% gluten free and 200% delicious! Our products are delicious and you cannot tell they are gluten free. We are a small startup business that was birthed out of our own personal need to be on a gluten free diet.