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Vegan Spag Bol

by Nigella

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Introduction

This is perfect when you need ballast, comfort and cheer. It’s certainly not light, and you may of course use less sauce per pasta (and indeed less pasta, too) than I advise, but I have very much modelled it, as its title indicates, on that traditional British delight, spag bol, which is always much more heavily sauced than any Italian would condone.

I do want to say that this is no second-best meat substitute, but a gorgeously rich sauce in its own right: the aubergine/eggplant melts into the lentils, and the dried mushrooms — predominantly the soaking liquid — bring an intense umami depth. Should you not have any dried mushrooms to hand, you could by all means stir some marmite or vegemite into the 250ml/1 cup freshly boiled water until it dissolves, and add this along with the tins of tomatoes, but if you can get the dried mushrooms, they bring a magic of their own, which I would be unwilling to do without. And please bear in mind that this thick, meaty lentil sauce also makes, when topped with mashed potato, a glorious vegan-friendly shepherd’s pie. And should you wish to eat it as a stew with rice, then I suggest you add another tin of chopped tomatoes when you cook it.

This makes 2 litres/8 cups sauce and you will need 1-1½ cups (or enough to come up to 250-375ml in a measuring jug) for 100-125g/4oz spaghetti per person; therefore this amount is enough to feed 4-8 people, using 500g to 750g/1lb to 1½ lbs spaghetti.

I know this makes a lot, and many of us are eating in small groups or singly right now, but since you do need to cook everything for a good long time, and would still have to even if you halved the recipe, it makes sense to me to cook up a big batch and freeze portions to make your life easier later.

For US cup measures, use the toggle at the top of the ingredients list.

Image of Nigella's Vegan Spag Bol — Photo by Nigella

Ingredients

Serves: 4-8 (see intro)

Metric Cups

10 grams dried porcini mushrooms
2 large onions (approx. 400g / 3 cups roughly chopped)
2 x 15ml tablespoons + 2 x 15ml tablespoons olive oil plus more as needed
1 teaspoon + 2 teaspoons Maldon sea salt flakes or ½ teaspoon + 1 teaspoon fine sea salt, plus more to taste
1 medium aubergine (approx. 300g / 3½ cups cut into ½ inch dice)
150 grams carrots
1 large bunch flatleaf parsley
3 fat cloves garlic (minced or grated)
½ teaspoon dried chilli flakes
1 teaspoon dried thyme
1 teaspoon smoked sweet paprika
2 x 15ml tablespoons tomato puree
50 grams red lentils
100 grams green lentils
100 grams puy lentils
2 x 400g tins chopped tomatoes

approx. ½ cup dried porcini mushrooms
2 large onions (approx. 400g / 3 cups roughly chopped)
2 tablespoons + 2 tablespoons olive oil plus more as needed
1 teaspoon + 2 teaspoons kosher salt or ½ teaspoon + 1 teaspoon fine sea salt, plus more to taste
1 medium eggplant (approx. 300g / 3½ cups cut into ½ inch dice)
1½ cups grated carrots
1 large bunch Italian parsley
3 fat cloves garlic (minced or grated)
½ teaspoon red pepper flakes
1 teaspoon dried thyme
1 teaspoon smoked sweet paprika
2 tablespoons tomato puree
¼ cup red lentils
½ cup green lentils
½ cup puy lentils
2 x 14oz cans diced tomatoes

Method

Put the dried porcini mushrooms in a heatproof measuring jug and pour over freshly boiled water until it reaches the 250ml / 1 cup mark. Poke the mushrooms down a bit with a spoon (they will bob straight back up, though!) then cover the jug with a small plate and leave for half an hour, while you get on with the onions.
Roughly chop the onions. Warm the first 2 tablespoons of olive oil in a heavy based pan or casserole, no smaller than 22cm / 9 inches in diameter, and that comes with a very tightly fitting lid. Stir in the onions, sprinkle in 1 teaspoon sea salt flakes (or ½ teaspoon fine sea salt), and cook over medium heat for 5 minutes, keeping a close eye on them, then turn down the heat to low and let them cook gently — giving them a stir every now and again — for a further 20-25 minutes, until they are soft and golden, but don’t let them burn.
While the onions are cooking gently, cut your aubergine into 1 cm / ½ inch dice. If you think the carrots need peeling, peel them, but if they are tender-skinned I don’t bother. Grate them and set them aside for now. Trim the parsley stalks to remove the very ends, and then finely chop enough stalks to give you 4 x 15ml tablespoons (about an espresso cup’s worth) / ¼ cup. Put the leaves back in the fridge for now.
When the onions are ready, turn the heat to high, add the remaining 2 tablespoons of olive oil and tumble in the aubergine cubes, and stir them about in the hot pan for 5 minutes, though if you need to turn the heat down to medium, do.
Take the pan off the heat. Strain the soaked dry mushrooms, reserving the precious umami-water. Chop the mushrooms finely and scrape into the pan. Grate or mince over the garlic, sprinkle in the chilli flakes, dried thyme and sweet smoked paprika, followed by the chopped parsley stalks. Put the pan back on the hob and cook, stirring, over medium heat for a minute. If you feel you need any more oil, just add it, but it doesn’t matter if the pan is pretty dry; you just don’t want anything to burn and stick.
Stir in the remaining 2 teaspoons sea salt flakes (or 1 teaspoon fine sea salt) followed by the 2 tablespoons of tomato puree and cook, stirring, over medium-low heat for a further 3 minutes.
Stir in the reserved grated carrots. Add the red, green and puy lentils, followed by the 2 tins of tomatoes. Divide 400ml/1⅔ cups cold water between the two empty tins and swill out into the pan, and then add the reserved mushroom-soaking water. Give everything a good stir, then bring to a bubble, then clamp on the lid, turn down the heat to low and let everything simmer gently for a good hour. You want everything to be soft, and condensed stickily, though by all means do check regularly to make sure your mess of pottage is neither too dry nor burning, adding water as necessary. But don’t make this too liquid, as you will be adding pasta cooking water later. Once the lentils are ready, finely chop enough parsley leaves to give you enough to come up to the 250ml mark on a measuring jug/ 1 cup, and stir this into the hot pan. Whatever is left on the chopping board you can sprinkle over later. And once this is done, you can take the pan off the heat, and leave it with the lid on to keep warm for 30 or so minutes if wished. There are notes in the recipe intro as to how much sauce you might need for how much pasta.
Towards the end of the sauce’s cooking time or while it’s being kept warm — whatever suits you more — put water on to boil for the spaghetti. When the water’s come to the boil, salt it, but not too exuberantly and add the amount of pasta you need.
When the spaghetti’s cooked, use a pasta fork to add it to the sauce, along with as much of the pasta cooking water as you need to help bind the sauce to the spaghetti. Or you can dip in a measuring jug to remove about 500ml / 2 cups of the pasta water, and then drain the spaghetti in a colander. Sprinkle each bowl with a little parsley.

Put the dried porcini mushrooms in a heatproof measuring jug and pour over freshly boiled water until it reaches the 250ml / 1 cup mark. Poke the mushrooms down a bit with a spoon (they will bob straight back up, though!) then cover the jug with a small plate and leave for half an hour, while you get on with the onions.
Roughly chop the onions. Warm the first 2 tablespoons of olive oil in a heavy based pan or casserole, no smaller than 22cm / 9 inches in diameter, and that comes with a very tightly fitting lid. Stir in the onions, sprinkle in 1 teaspoon sea salt flakes (or ½ teaspoon fine sea salt), and cook over medium heat for 5 minutes, keeping a close eye on them, then turn down the heat to low and let them cook gently — giving them a stir every now and again — for a further 20-25 minutes, until they are soft and golden, but don’t let them burn.
While the onions are cooking gently, cut your eggplant into 1 cm / ½ inch dice. If you think the carrots need peeling, peel them, but if they are tender-skinned I don’t bother. Grate them and set them aside for now. Trim the parsley stalks to remove the very ends, and then finely chop enough stalks to give you 4 x 15ml tablespoons (about an espresso cup’s worth) / ¼ cup. Put the leaves back in the fridge for now.
When the onions are ready, turn the heat to high, add the remaining 2 tablespoons of olive oil and tumble in the eggplant cubes, and stir them about in the hot pan for 5 minutes, though if you need to turn the heat down to medium, do.
Take the pan off the heat. Strain the soaked dry mushrooms, reserving the precious umami-water. Chop the mushrooms finely and scrape into the pan. Grate or mince over the garlic, sprinkle in the chilli flakes, dried thyme and sweet smoked paprika, followed by the chopped parsley stalks. Put the pan back on the hob and cook, stirring, over medium heat for a minute. If you feel you need any more oil, just add it, but it doesn’t matter if the pan is pretty dry; you just don’t want anything to burn and stick.
Stir in the remaining 2 teaspoons sea salt flakes (or 1 teaspoon fine sea salt) followed by the 2 tablespoons of tomato puree and cook, stirring, over medium-low heat for a further 3 minutes.
Stir in the reserved grated carrots. Add the red, green and puy lentils, followed by the 2 tins of tomatoes. Divide 400ml/1⅔ cups cold water between the two empty tins and swill out into the pan, and then add the reserved mushroom-soaking water. Give everything a good stir, then bring to a bubble, then clamp on the lid, turn down the heat to low and let everything simmer gently for a good hour. You want everything to be soft, and condensed stickily, though by all means do check regularly to make sure your mess of pottage is neither too dry nor burning, adding water as necessary. But don’t make this too liquid, as you will be adding pasta cooking water later. Once the lentils are ready, finely chop enough parsley leaves to give you enough to come up to the 250ml mark on a measuring jug/ 1 cup, and stir this into the hot pan. Whatever is left on the chopping board you can sprinkle over later. And once this is done, you can take the pan off the heat, and leave it with the lid on to keep warm for 30 or so minutes if wished. There are notes in the recipe intro as to how much sauce you might need for how much pasta.
Towards the end of the sauce’s cooking time or while it’s being kept warm — whatever suits you more — put water on to boil for the spaghetti. When the water’s come to the boil, salt it, but not too exuberantly and add the amount of pasta you need.
When the spaghetti’s cooked, use a pasta fork to add it to the sauce, along with as much of the pasta cooking water as you need to help bind the sauce to the spaghetti. Or you can dip in a measuring jug to remove about 500ml / 2 cups of the pasta water, and then drain the spaghetti in a colander. Sprinkle each bowl with a little parsley.

Additional Information

MAKE AHEAD AND FREEZE:

Simmer the sauce for 1 hour then cool and refrigerate as quickly as possible. The sauce can be kept in the fridge for up to 5 days or frozen for up to 3 months. Defrost overnight in the fridge.

Reheat the sauce in a saucepan over a medium heat stirring occasionally until piping hot. You may need to add a bit of water to the sauce as you reheat it. Proceed from step 8.

MAKE AHEAD AND FREEZE:

Simmer the sauce for 1 hour then cool and refrigerate as quickly as possible. The sauce can be kept in the fridge for up to 5 days or frozen for up to 3 months. Defrost overnight in the fridge.

Reheat the sauce in a saucepan over a medium heat stirring occasionally until piping hot. You may need to add a bit of water to the sauce as you reheat it. Proceed from step 8.

Tell us what you think

What 7 Others have said

We loved this spag bol and tasted even nicer the following day in a soup bowl with crusty bread. Another winner

Posted by Kirble on 28th January 2023
This is such a delicious recipe! Hearty and satisfying. I deglazed with a splash of white wine after step 4 as I was worried about the onions catching and over-browning (I was using a cast-iron pot which retains heat very well) and upped the chilli a little but otherwise followed the recipe to a 'T'. Our favourite meat-free ragu, which we'll make over and over again.

Posted by AshBryar on 5th May 2021
This is so delicious, satisfying and hearty. I've made it twice. I halve the recipe and still get at least three meals out of it. (but only cooking for two). I serve it with Parmigiano Reggiano. Highly recommend it.

Posted by Catnis on 14th February 2021
Sainsbury's and Waitrose both have puy lentils

Posted by Herbaceousb on 31st January 2021
I couldn’t find puy lentils anywhere, only the ready cooked sachets. My daughter pointed me to Holland and Barrett (I’m in the UK). They are sold, dried, as “o la la lentils“! I can now make the vegan spaghetti Bol recipe.

Posted by Greengage on 28th January 2021
Time consuming, but then again all ragu’s are. This was so delicious, earthy and rich.

Posted by BunnyMayfair on 9th January 2021
I can’t find puy lentils anywhere. Where are people buying them? I just pro-rated the red and green lentils to make up the shortfall but I’d love to add the puy lentils.

Posted by Scooter66 on 5th January 2021