Peel off the onions and chop them in to medium sized chunks. Similarly chop tomatoes in to big cubes and aside. Heat a pan with oil, split black gram lentils and red chillies. Saute them together in medium flame.

When the lentils turn slightly brown, add chopped onions and saute. The onions turn translucent in few minutes, then include chopped tomatoes and salt. Let it cook till mushy. You can add little water too at this stage.

Let the roasted ingredients cool down to room temperature, then transfer it to mixer and blend to little coarse paste.

Beautiful red colored onion tomato chutney is ready. Serve it as side dish with idli and dosa.

Choose well ripe tomatoes for bright red colored chutney.

Tomatoes should be sauteed till the raw smell subsides and it turns mushy.

You can also add few curry leaves and few coriander leaves while sauteing for taste variation.

Adjust red chillies as per the spice you like your chutney to be.