Method
1. Roast the butternut squash
Preheat the oven to 200°C (180°C fan, Gas Mark 6). Arrange the diced butternut squash on a baking tray, drizzle with olive oil and season with salt and freshly ground black pepper.
Roast for 25–30 minutes, turning halfway through, until the squash is tender and lightly caramelised around the edges. Set aside.
2. Prepare the risotto base
Heat the remaining olive oil in a large, heavy-based saucepan over a medium heat. Add the chopped onion and cook gently for 5–7 minutes until soft and translucent. Stir in the garlic and chopped sage, cooking for a further minute until fragrant.
Add the risotto rice and stir for 1–2 minutes, ensuring each grain is coated in the oil and begins to look slightly translucent around the edges.
3. Add the wine and stock
Pour in the white wine and stir until it has been absorbed by the rice.
Add the hot vegetable stock a ladleful at a time, stirring regularly and allowing each addition to be absorbed before adding the next. Continue for approximately 18–22 minutes, until the rice is tender but retains a slight bite and the risotto has a creamy consistency.
4. Incorporate the roasted squash
Reserve a few pieces of roasted squash for the final presentation. Gently fold the remaining squash into the risotto, taking care not to break it down completely.
Remove the pan from the heat and stir in the butter and grated cheese. Cover and leave to rest for 2 minutes. Taste and adjust the seasoning as required. If necessary, add a little extra hot stock to achieve a soft, flowing consistency.
5. Prepare the crispy sage
Heat the olive oil in a small frying pan over a medium heat. Add the sage leaves and fry for approximately 20–30 seconds, until crisp but still green. Remove carefully and place on kitchen paper to drain.
6. Serve
Spoon the risotto into warmed bowls and arrange the reserved roasted squash on top. Finish with the crispy sage leaves and a light scattering of finely grated cheese, if desired.
Serve immediately while the risotto is warm and creamy.