Fragrant chicken curry with chard, coconut and cashew

INGREDIENTS

1 tsp

cumin seeds

1 tsp

coriander seeds

1 tsp

mustard seeds

1/2 tsp

turmeric

onion (small or 1/2 large )

1/2 lb

chard (225g)

1 3/4 lb

boneless chicken thighs (800g, approx, 4-6 thighs depending on size)

1 clove

garlic (or 2 small)

1 tbsp

fresh ginger (1in/2.5cm piece)

3/4 cup

coconut milk (175g, divided)

1/2 cup

cashews ('raw', not roasted or salted)