Step 1

Bring the water to boil in a large pot. Season the water with a good amount of salt. Cook the spaghetti in the boiling water by the packet instructions. Reserve 1 cup of pasta cooking water for later use. Then drain the water out. Meanwhile, the spaghetti is cooking you can prepare mushroom and creamy sauce.

Step 2

In a large pan, heat the butter and olive oil over medium heat. Add chopped onions and saute for a few seconds.

Step 3

Add the mushroom slices and saute for 3-4 minutes until brown. Season with salt and pepper to taste. Follow with chopped garlic and stir for a few seconds until fragrant.

Step 4

Pour in pasta water and double cream and bring it to simmer. Once the sauce starts to get thicken add the cooked spaghetti, and grated cheese. Finish with chopped parsley and combine everything well.

Step 5

Transfer to serving plate and garnish with parsley and grated parmesan. Serve immediately.