Preheat your oven to 220°C/200°C fan/gas mark 7.

Boil a full kettle.

While it boils, halve, peel and chop the onion into small pieces.

Heat a drizzle of oil in a large, wide-bottomed ovenproof pan on medium heat. TIP: If you don't have an ovenproof pan, use a normal pan and transfer to an ovenproof dish before baking.

Once hot, add the onion and mushrooms to the pan. Season with salt and pepper and fry, stirring occasionally, until browned, 5-6 mins.

If you prefer hob cooking your risotto, just use a normal pan.

Add the cider vinegar and allow to evaporate, 1 min. Stir in the risotto rice into the pan. Stir and cook until the edges of the rice are translucent, 1-2 mins.

Stir in the boiled water for the risotto (see pantry for amount), veg stock paste and wild mushroom paste. TIP: If your wild mushroom paste has hardened, put the sachet in a bowl of hot water for 1 min to loosen.

Bring back up to the boil. Pop a lid on the pan (or cover with foil). Bake your risotto on the middle shelf of your oven until the rice is cooked and the water has been absorbed, 25-30 mins.

For hob cooking, pour in 2p: 800ml, 3p: 1200ml, 4p: 1600ml of boiled water a third at a time, stirring each time until the stock has been absorbed, 20-25 mins.

While the risotto bakes, pop two thirds of the garlic (unpeeled) into a small piece of foil with a drizzle of oil and scrunch to enclose it. Peel and grate the remaining garlic (or use a garlic press).

Remove the stems from the portobello mushrooms and pop them onto a baking tray, cut-side up. Add the grated garlic, drizzle with oil and season with salt and pepper. Rub the oil and garlic all over.

Roast the mushrooms and garlic parcel on the top shelf until tender, 15-18 mins. Once the garlic has cooled, cut the end with scissors, squeeze it out of the skin and mash with a fork.

When the risotto is cooked, remove it from the oven and mix in the butter (see pantry for amount), roasted garlic, hard Italian style cheese and truffle zest. 

Season to taste with salt and pepper if needed. TIP: Add a splash of water to loosen the risotto to your desired consistency.

Transfer your cooked portobellos to a board and slice into strips.

Spoon your mushroom risotto into bowls and top with the sliced portobello mushrooms.

Top with a handful of rocket and drizzle a little oil over the leaves to finish.