Mildly sweet, spicy and tangy lip smacking rasam or a soup like south Indian tomato broth with some fresh pineapples and simple aromatic spices to make for a comforting dish, always enjoyed with rice or great as a comforting and warming soup too.
Pour this into a saucepan along with 1 ½ to 2 cups of water (do not forget to rinse the blender jar too with this water; no wastage here). You need a soup like consistency here. Mix well.
Bring to a boil on medium high.
Stir in ¼ to 1/3rd cup chopped pineapple (optional) along with 1 small green chili, chopped, sliced or slit into 2 (again optional but adds additional flavor).
Add ½ teaspoon coriander powder, ½ teaspoon red Kashmiri chili powder, ¼ teaspoon haldi/turmeric powder, ¼ teaspoon black pepper powder, ½ teaspoon rasam or sambar powder (homemade or store bought; again this is optional but adds that authentic rasam flavor!) and 1 teaspoon (or to taste) pink or regular salt.
Mix well and bring to a boil again.
Simmer on medium low for 5 minutes; adjust consistency and seasonings. If the rasam is too tangy (due to the pineapple), stir in a tablespoon or two of jaggery/brown sugar. I did not have to but if you like your rasam a bit on the sweeter side, feel free to add some sweetener.
In a small saucepan, heat 2 tablespoons of oil (or ghee if not vegan); once hot, add 1/2 teaspoon mustard seeds and let it pop. Allow it to fully crackle and then sprinkle ½ teaspoon of jeera/cumin seeds along with a few curry leaves.
Sauté for a few seconds and immediately pour into the simmering pineapple rasam; stir in.