Slice the onion finely and fry in oil with a pinch of salt for about 3-4mins
Add 1 tsp of sugar and fry for another 3-4mins until the onion starts to caramelise. Once cooked remove from pan and set aside.
Add the sausages to the pan with some olive oil, breaking up into bite sized pieces. Cook for 5-6mins before adding back in the onion and garlic, peel and crushed.
Add the smoked paprika, herbs, sun-dried tomato paste and chilli flakes to the pan. Fry for 1-2mins.
Add the cream, veg stock and 100ml of boiling water and nutritional yeast. Bring to a low simmer.
Cook the pasta in salted water for 10-12mins
Once cooked, drain the pasta and add to the sauce. Season to taste.
Serve with the roughly chopped basil.