In a cooking pot add cooking oil and let it cook until hot. add your onions(hot cooking oil gives that onion aroma)cook until tender. add your garlic and cook for 2 more mins...add your tomatoes(at this stage you can add your spices if you want to)cook the tomatoes until they are well mashed.

Add your pre-boiled beans stir in some salt to taste...mix well. add some water and let it boil.(kindly don't add too much water)let it boil when its about to dry add your cream stir and turn off the heat(fire)...sprinkle coriander on top.

Serve to your liking