This step is completely optional but if you try this, it would turn awesome.Heat a tbsp of oil in a kadhai or thick bottom wide pan, and shallow fry the chopped sweet potatoes on high flame for few minutes till it turns little brown and crisp. You can even dry roast them (without oil). Later, remove them on a kitchen towel and allow it to cool down.
Till then, take a large mixing bowl and add ingredients for making the chat.
Firstly, add the chopped onions.
Then, add finely chopped coriander leaves followed by chopped tomatoes.
Then add roasted and peeled peanuts.
Add salt, ground flax seeds, red chilli powder, chat masala, oregano herbs, black pepper powder, and Lemon juice.
Mix all the ingredients very well.
Then, add roasted sweet potatoes into the mixing bowl and mix gently. Mix it slowly to avoid sweet potatoes from mashing.
Sweet potato chat is ready to be served with the additional topping of chat masala, oregano and lemon juice.