Clean, wash and finely dice the peppers. Peel and finely dice the onions. Drain mustard gherkins and chop a little smaller. Mix prepared ingredients, vinegar and sugar. Season with salt and pepper. Cook for about 30 minutes, stirring occasionally. In the meantime, peel the mangos.
Remove the flesh from the stone and dice roughly. Peel garlic and press it through a garlic press. Wash and dice the tomato. Puree mango, except for a few cubes, garlic, tomato and lemon juice. Refine with crème fraîche. Fold in remaining mango cubes. Season with salt and crushed chilli