Heat ghee in a pan and add cumin seeds, pureed tomatoes before proceeding with spinach puree. You can also use 2 bunches of spinach instead of Amaranth leaves if they are not available easily. Replace paneer with tofu and ghee with oil to make it vegan.Do not add onions and garlic to the recipe to make Jain 'palak paneer' .You may skip the different spices and use curry powder instead,add garam masala if you like it spicy.