Blanch spinach leaves in boiling water for 1-2 minute. Remove from heat and put in ice cold water. Squeeze excess water and blend to a fine puree, if need water then you can add and stir till boiled.

Heat oil in a pan and add cumin seeds, onion and garlic and cook until they are lightly golden in colour. Cook on a medium flame for 1 minute.

Now add yogurt, garam masala and salt, mix well after 1 minute switch off the flame. Pour in a serving bowl.