Peel the small onions and make a plus-shaped '+' slit in the onions. Remember, do not cut the onion, only make a mark.
Put a pan on the stove and pour half a glass of water in it. Start the heating.
Add cinnamon, cardamoms, cloves, a pinch of salt and 1 tsp sugar in it. Boil the water well.
If you want to use beetroot instead of food color, then add beetroot in the boiling water for 1 minute. If you are using food color, then ignore this step.
While things are boiling in the pan, let us quickly grab a glass jar and put the slit onions in it.
Add half a cup of vinegar in the jar followed by adding food color.
Back to the pan now, the water must have boiled and extracted the flavours of raw spices.
Strain the spices and add the water in the glass jar on top of vingar and onions.
Now cover this glass jar and put it to rest for about 12 hours so that the onions soak all the flavours.
Vola! Now enjoy the restaurant like sirka wala pyaz, vinegar onion or pickled onion with your food.