Chop the green pepper in half and remove the seeds and stems. Cut into medium-sized square pieces.
Heat oil over medium-high heat and fry onions until soft and translucent.
Add Green pepper slices to the pan and cook for 5 minutes until starting to soften.
Turn the heat down slightly, add another splash of oil followed by garlic, 1.5 tablespoons of the madras curry powder, turmeric and smoked paprika. Stir spices around the pan for approx. 30 seconds until coated in oil and fragrant in smell.
Add tomato paste. Cook down until darkened a little and sticky. Pour chopped tomatoes, stock, chicken pieces and green chilli into the pot and stir to combine. Bring to a boil, then reduce to a simmer, cover with a lid and cook slowly for 1 hour (stirring occasionally) until the sauce is thick and oily.
To finish, stir in the mango chutney, minced ginger, and lime juice. Taste and adjust the seasoning with salt, if needed. In a small pan, melt 1 heaped tablespoon of butter together with the remaining ½ tablespoon of Madras curry powder. Let it sizzle for a few seconds until fragrant, then pour the spiced butter over the curry and stir it through.
Serve madras curry with a side of basmati rice, popadoms, nam bread, yoghurt, coriander for garnish and ice-cold beer.