Heat 2 tbsp of oil & saute 11/2 cups of onion (chopped long & thin) & 1 greenchilly, slit.
Stir in 11/2 tbsp of coriander powder, 3/4 tp of red chilly powder & 1/4 tsp of turmeric powder & saute on low heat for 1-2 minutes.
Add 1 whole + 1/2 a medium sized tomato, 11/2 cups of frozen green peas & 1 cup of thin coconut milk ( add 2 heaped tbsp of coconut milk powder to 1 cup of lukewarm water). Bring to a boil & add enough salt. Cover cook on low heat for 10 minutes/ till the gravy thickens sufficiently.
Finally add 3/4 tsp of garam masala powder & 1 tbsp of chopped cilantro. Mix well & remove from heat. Serve hot with roti.