Combine turmeric, red chili powder, ground spices, and salt in a bowl to make the spice mix. Transfer to a clean jar, seal tightly, and leave to marinate for 5–7 days for the perfect tangy taste.
It uses tinned pulp so you aren't limited to the short Alphonso mango season. To make the pastry, sift the flour into a large bowl, then add the caster sugar and crushed cardamom seeds.