Heat the oil in a large deep pot, add the onion and fry until soft. Stir in the ginger and cook, stirring frequently, for about 8-10 minutes until the onion is golden.
Add all of the spices, except the turmeric, and fry until toasted.
Stir in the turmeric and chili, add the lemon and the mango, and pour in 500ml water and the vinegar, sugar, and salt. Cover and cook for 30 minutes.
Stir the mix, take off the lid, and leave to simmer uncovered for 30 minutes (it may take longer depending on how much moisture was in your mangoes). Keep stirring frequently until the chutney is thick and set. Spoon into your jars and enjoy!
Equipment
Stove
Large pot with lid
Chopping board
Cook's knife
Kitchen scales
Cup measurers
Liquid measuring jug
Wooden (or plastic) stirring spoon
Notes And Tips
Change up the seasonings. For the seasonings, I'm using curry powder, turmeric, paprika, and a bit of salt, though you can easily vary this up. Add in a spicier chili powder or spicy chili flakes if you'd like.
Use the peppers of your choice. You can really spice it up by including super hot peppers, such as the ghost pepper or a nice 7 Pot chili pepper. Or, make a milder version by using only sweeter peppers. The choice is yours.
Don't cook it for too long. The goal is for the mango chutney to be soft but not mushy.