Autumn days mean curling up with a roaring fire, rain beating against the window and plenty of comforting food. It also brings the squash season and this means that butternut squash soup is hard to resist. This soup combines squash with sweet potato and parmesan which brings the sweetness into balance with the umami edge that parmesan brings. The rind of parmesan is a secret weapon in cooking so I always keep them in the freezer so they are on hand to use in soups, stews, risottos and pasta dishes. My added extra is a delicate hint of spice and a hit of roasted garlic. I have also used the squash seeds to create a crunchy topping that can be sprinkled over the soup to serve so don’t delay- get cooking!
Ingredients- serves 4-6
1 large butternut squash
2 sweet potatoes
2 bulbs of garlic
2 white onions- chopped
1.5 litres of hot vegetable stock
Salt and pepper
1-2 rinds of parmesan
For the seed topping
1. Preheat the oven to 200c/ 180 fan. Use a sturdy knife to cut the butternut squash in half lengthways. Scoop out the seeds with a spoon and set aside for later. Use a knife to score the flesh. Peel the sweet potatoes and cut into inch chunks. Place the squash on a baking tray and the sweet potatoes in another one before drizzling both with olive oil and sprinkling with salt. Roast in the oven for approximately 40 minutes or until tender. The squash will start to caramelise at the edges and this adds to the flavour. Cut the tops of the garlic bulbs off and wrap in a foil parcel with some oil and roast until tender.
2. Meanwhile you can prepare the seeds. Simply wash them and pat them dry. Pop them on a baking tray with a drizzle of oil, the sea salt and chilli flakes. Roast with the vegetables until the seeds are golden and crunchy. When they are ready, set aside and allow to cool.
3. Take a large pan that will be able to hold all of the soup. Heat a glug of oil over a medium heat and cook the onions until softened but do not allow them to colour. When the vegetables are cooked add the sweet potato and roasted garlic to the pan whilst you scoop out the squash before adding the flesh to the pan too. I then used a potato mashed to slightly break the vegetables down to make blending even easier later. Add the hot stock to the pan. Take the pan off the heat and allow it to cool until you are able to blend it. Blend until you reach the consistency you like. Return the pan to the heat, drop in the parmesan rinds and simmer gently. Simmer for at least an hour if you can so the parmesan has time to infuse. Taste as you go and adjust the seasoning according to taste. Serve in warmed soup bowls with plenty of fresh bread to dip.
Butternut squash, sweet potato and parmesan soup- the perfect antidote to a blustery autumn day!