Serves 4
2 tsp fennel seeds2 tsp coriander seeds2 tsp black mustard seeds coconut or groundnut oil2 leeks, washed and roughly shredded4 garlic cloves, peeled and chopped1 green chilli, roughly chopped1 x2 tbsp tamarind paste1kg / 35oz tomatoes, small ones halved, big ones quartered, or 2 x 400g / 14oz tins cherry tomatoeskernels from 1 large corn on the cob, or 175g /6.2oz tinned or frozen kernels2 large handfuls of chard or spinach, washed, leaves roughly shredded, stems sliced
