1 tromboncino squash or butternut squash
1 red chilli, finely chopped
2 tbsp chopped coriander
ΒΌ tsp fenugreek seeds
2 garlic cloves, finely sliced
5cm/2in piece fresh root ginger, finely grated
1Β½ tsp black onion seeds
1 shallot, finely diced
2 tbsp mango chutney
salt and black pepper
1 tbsp caster sugar
1 tbsp olive oil
Β½ tsp ground turmeric
50²µ/1ΒΎ΄Η³ϊ butter
2 chicken breasts (preferably French-trimmed), skin on