Line a a 9x13" baking sheet with parchment paper, spray with nonstick spray, and preheat oven to 350*F.
Put your dry ingredients (flour, sugar, baking soda, and salt) directly into the greased pan and whisk together until everything is well mixed and no clumps of brown sugar remain.
Create three depressions (or wells) in the cake (2 small and 1 large).
Add the apple cider vinegar to one small depression and the pineapple extract to the other small depression.
Add the oil into the large depression.
Pour water directly over the top of all of the ingredients and then mix until smooth and no dry flour remains.
Bake for 40 minutes or until a toothpick comes out clean.
Cool before frosting.