First of all preheat oven at 180°C.
Shift all dry ingredients together for atleast 3-4 times .
Add 1 tbsp vinegar to milk and let it rest for 5 minutes .
Now add oil to it and mix till it become homogenous.
Add Sprig vanilla essence and mix well.
Now mix dry ingredients in wet mixture in two batches and make a lump free batter with cut and fold method .
Pour the batter in an 8" pan lined with butter paper .
Tap the pan on slab for few times to escape any large bubbles trapped inside the batter.
Now place the pan in preheated oven and bake for 25-30 minutes or till toothpick inserted in its middle comes out clean .
Once done, remove from oven and let it rest for 5-10 minutes and then invert on a wire rack and cool completely .
Eat it as it is or chill it and then dress it in your favourite icing and enjoy.