Mint Onion Tomato chutney/Dip can be kept for 2 or 3 days in refrigerator and used. The combined flavor of mint leaves and onion gives a perfect blending. Mint Onion Tomato chutney goes very well with any tiffin item. Add two tea spoons of this chutney to a cup of fresh curd and have with parathas to relish a punch..