Soak the Black eyed peas over night or for 6 hours and in the morning cook it in a pressure cooker by adding water till the immersing level along with Salt. Pressure cook for 3 whistles and switch off the flame. Wait till the pressure gets released by itself and then open the cooker.
Chop the Ash gourd into cube sized pieces, slit open green chillies and keep it ready. In a pan add in Water to this add in the chopped Ash gourd and Green chilli and start cooking. Meanwhile the black eyes peas will be ready open the cooker drain the excess water and keep it ready.
When the Ash gourd is about half cooked add Salt and the thin coconut milk and give a mix. Once it almost cooked add in the cooked Black eyed peas cook for another 5 mins.
Bring the flame to low and add in the Thick coconut milk, curry leaves and coconut oil cook for a minute and switch off the flame.
Notes
· Olan tends to get thick as it cools down.· Don’t overcook after adding the thick coconut milk it will get curdled.· Adding coconut oil in the end give a nice flavour to the olan.· Kerala olan is a mandatory dish in the Onam Sadhya.· Let the Ashgourd and Black eyed peas holds the shape ,if overcooked they will turn mushy.