Preheat oven to 350F. Mix sugar, eggs, oil, and vanilla. Add chopped apple and pecans and mix well. Pour into sprayed 9 x 13 inch Pyrex pan.
Instructions for glaze:
Mix buttermilk, butter and sugar. Bring to boil. Add soda and stir. Mixture will foam. Pour immediately onto hot cake.
Cajun Country -- New Iberia, Louisiana