Start by peeling the raw bananas and cut them into small cubes. You can soak them in water to prevent discoloration until you're ready to cook.
Place the frying pan and preheat the pan.
Heat oil in a frying pan or kadai over medium heat.
Add mustard seeds and urad dal to the hot oil. Let them splutter.
Then, add 1 string of curry leaves on to it.
Carefully add the raw banana cubes to the pan. Be cautious as the oil may splatter.
Fry them on medium heat for few minutes.
Then, add salt as required / 1 tsp.
Then, add a 1/4 tsp of asafoetida on to it.
Sauté for a few seconds until fragrant.
Next, add 1 tsp of chilli powder and fry for 1 minute.
Then, add 1/2 tsp of corriander powder and saute it well for a minute again.
Later add 1 tsp of oil to the poriyal and saute it for 5-6 minutes.
Enjoy your homemade valakkai varuval! Adjust the spice level to suit your taste by increasing or decreasing the amount of red chili powder.