Gather tomatoes, garlic, red chilies, salt, oil, and spices.
Roughly chop tomatoes, garlic; heat oil in a frying pan.
Add garlic to hot oil, sauté until fragrant and golden brown.
Toss in chopped tomatoes, cook until softened and mushy.
Add red chilies, salt, and optional cumin or mustard seeds.
Cool slightly, then blend into a smooth or chunky paste.
Enjoy chutney with dosas, rice, or as a dipping sauce.