As children we always knew when there were chickpeas for dinner from the hissing and spluttering noise from the pressure cooker — this is my mother’s classic recipe.
Heat the oil in a large saucepan over a low heat. Add the onion and ginger and soften, without colouring, for 5 minutes.
Turn up the heat a tad and fry until the onion becomes golden at the edges. Stir in the turmeric, garam masala, and chilli powder. Fry for another 30 seconds to cook the spices.
Add the tomatoes - if they are not as ripe as you woul