Caramelised chicken and chilli stir-fry

Ingredients (4 servings): 1 tbs olive or grape seed oil 80g (½ cup) raw cashews 6 (about 800g) chicken thigh fillets, cut into 2cm cubes 2 red onions, cut into wedges 12 fresh red & green bird’s eye chillies 5cm piece fresh ginger, peeled, cut into matchsticks 2 garlic cloves, thinly sliced 125g (¾ cup) palm…