Butternut squash soup | Lunch | Umami

Ingredients

• 1 butternut squash, about 1kg, peeled and deseeded
• 2 tbsp olive oil
• 1 tbsp butter
• 2 onions, diced
• 1 garlic clove, thinly sliced
• 2 mild red chillies, deseeded and finely chopped
• 850ml hot vegetable stock
• 4 tbsp crème fraîche, plus more to serve