Spicy Mango-Ginger Chutney

Peel the mango, remove the fruit from the stone, and thinly slice. Peel and finely chop the ginger. Rinse and trim the chilis. Halve lengthwise and finely dice. Peel, quarter, and julienne the onions. heat the oil in a pan. Sweat the onion and the chili in the pan. Deglaze with the vinegar, apple juice, and 100 ml (approximately 3 ounces) of water. Add the turmeric, mustard powder, and sugar. Season to taste with salt and pepper and bring to a boil. Reduce the heat and simmer for 5 minutes. Add the mango, and simmer 5 minutes more. Season to taste, then transfer into the prepared jars. Seal tightly and cool completely.