Wash, discard the thick stems and chop spinach leaves and the tender stems.
Boil for about 10 minutes, strain and keep aside.
Coarsely chop onion and garlic.
Fry using 2 tsp olive oil.
Grind together the fried onion, garlic and boiled spinach.
Melt butter in a pan and lighlty brown the cornflour on a medium flame.
Add the pureed spinach mixture, salt and pepper powder.
Cook for about three minutes stirring in between.
Pour in the cream, reduce flame to low and let cook another minute.
Serve hot.