1. Preheat oven to 375 degrees F. Grease an 8" or 9" cake pan. In a bowl, sift together flour, sugar, baking soda and salt until very light and airy, about 3 times.
2. In a small bowl, combine cold water, oil, and vanilla. Add liquid ingredients (except lemon juice) to dry and combine. Once the batter is combined, add the lemon juice and stir quickly then pour into prepared pan.
3. Bake for 25 to 30 minutes or until cake tests done with toothpick.
This recipe tastes like a typical omni vanilla cake. It rises extremely well and is light, fluffy, moist and rich at the same time.