8 September 2026

Warming Butternut Squash Risotto with Sage Butter

By Emily Hartley
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Warming Butternut Squash Risotto with Sage Butter

Why a Roasted Squash Risotto Deserves a Spot in Your Weeknight Rotation

Risotto has a reputation for being fussy. It isn't. It simply asks for eighteen minutes of your attention and a warm pan of stock within reach. This version leans on roasted butternut squash, which brings sweetness and body without a drop of cream, and a sage butter you make in a small pan while the rice finishes. The result is a meat-free supper substantial enough for a wet Tuesday and smart enough for a weekend table when you're cooking for people you want to impress.

British-grown squash is at its best from late summer right through to early spring, and a stored specimen will sit happily for weeks in a cool, dark corner. Choose one that feels heavy for its size with a firm, dry stem. If you can only find a large Crown Prince or a pair of smaller ones, that works just as well — you're after roughly a kilogram of prepared flesh.

Start with the Squash, Not the Rice

Roasting is not a step you can skip. Cubed squash steamed in a pan turns watery and sweet in the wrong way; roasted, its edges caramelise and the flavour deepens. It also means half your work is done before you ever touch the rice.

Heat the oven to 200°C/180°C fan/gas 6. Peel and deseed one medium butternut squash (about 1kg), cut it into 2cm cubes, then toss on a large baking tray with two tablespoons of olive oil, a good pinch of salt and plenty of black pepper. Spread them out properly — if they're crowded they'll steam rather than roast. A few sprigs of thyme are a welcome addition if you have them.

Roast for 25–30 minutes, turning once, until the edges are burnished and a knife slides through with no resistance. Set aside a handful for the top. Mash the rest roughly with a fork, leaving some texture — you want it to ripple through the rice, not disappear into it.

The Rice, the Stock and the Stir

For four generous portions you'll need:

  • 1 onion, finely chopped
  • 2 garlic cloves, crushed
  • 300g arborio or carnaroli rice
  • 150ml dry white wine
  • About 1.2 litres hot vegetable stock
  • 40g butter and 2 tbsp olive oil
  • 60g finely grated hard cheese, plus more to serve

Keep the stock at a bare simmer in a pan next to the rice — cold stock stalls the cooking and makes the whole thing take twice as long. Soften the onion in the oil and half the butter over a medium heat for 8–10 minutes, without letting it colour. Add the garlic for a minute, then the rice, and stir for two minutes until the grains look translucent at the edges with a tiny white dot at the centre.

Pour in the wine and let it bubble away almost entirely. Then add stock a ladleful at a time, stirring and waiting until each addition is absorbed before the next goes in. This takes 18–20 minutes. Taste the rice rather than trusting the clock: you want a slight bite at the centre and a consistency loose enough to spread slowly across a plate. Stir the mashed squash through in the last five minutes and season carefully as you go — the stock is already salty.

Sage Butter: the Finishing Touch

Melt 60g of butter in a small, light-coloured pan over a medium heat. When it foams, add 10–12 sage leaves and, if you like, a tablespoon of pine nuts or chopped hazelnuts. Cook for 60–90 seconds until the leaves darken and crisp and the butter smells nutty and turns pale gold. Take it off the heat the moment it does — the gap between nutty and burnt is about five seconds.

Now take the risotto off the hob, beat in the remaining butter and most of the cheese hard with a wooden spoon, then cover and rest for two minutes. Spoon into warm bowls, top with the reserved squash, spoon the sage butter over, and finish with more cheese, cracked pepper and a squeeze of lemon to cut the richness.

Swaps, Leftovers and What to Serve Alongside

  • Cheese: Parmesan works beautifully; a vegetarian hard cheese or a little crumbled blue will also do the job.
  • Herbs and spice: thyme roasted with the squash, a pinch of chilli flakes with the onion, or parsley stirred through at the end.
  • Leftovers: spread any extra into a shallow tray, cool quickly, and keep in the fridge for up to two days. Reheat gently with a splash of stock — never blast it in a hot pan. Cold risotto also shapes into patties that fry beautifully in oil until crisp.
  • On the side: something sharp and leafy — rocket with lemon and olive oil, chicory, or watercress — plus crusty bread to mop up, and the rest of the wine you cooked with.

Once you've made it a couple of times, the timings become instinctive: squash in the oven first, stock on the back ring, and the sage butter done in the last few minutes so it hits the plate still sizzling.