Take a bowl and seive maida,cornflour,baking powder and baking soda.

In another bowl take yogurt,sugar and oil.mix well.now add salt and vinegar.

Preheat the oven at 180degre for abt 10 minutes.now slowly slowly add dry ingedients into curd mixture.mix it and beat in 1 direction until it become thick.

Add choco chips and vanilla essence.mix it

Place muffin liners in muffin tray and transfer the batter in the cups.fill 3/4 of the muffin cup.tap the tray to avoid air bubbles.add some chico chips on the top if u want.

Now bake the muffins in preheat oven at 180 degree for 20-25 minutes.just 5 minute before complete baking give milk wash to the muffins for nice golden colour...allow the muffins to cool down and demould...enjoy😊