Chop mushrooms in Thermomix bowl for 10 seconds | Speed 3 and empty into a bowl
Chop chorizo in Thermomix bowl for 3 seconds | Speed 7 and add to bowl with mushrooms
Chop red onion and garlic for 3 seconds | Speed 4
Scrape down sides of bowl, add oil and sauté onion and garlic with measuring cup (MC) off for 3 minutes | 100C | Speed 1
Add tomatoes, tomato paste and stock concentrate and cook for 8 minutes | 100C | Speed soft with MC half on
Purée sauce for 20 seconds – slowly going from Speed 1 to Speed 7
Add chorizo, mushrooms, salt and pepper and cook for 10 minutes | 100C | Reverse | Speed soft with MC off. The bowl will be fairly full, so use the spatula to help incorporate the ingredients
In the meantime, cook the pasta in a pot of hot water according to packet instructions