Preheat oven at 180 C for 15 min.
In a bowl take milk add vinegar keep aside for 5 min.

Now sieve 3 times plain flour, salt, cocoa powder and baking soda mix well.

Take a bowl, add sugar and oil whisk it after that add milk, essence and food color mix well.

Now add flour on batches. Mix all gently and make a smooth batter.