Cook the sliced mushrooms in butter.

Be patient and let them cook through.

Stir well and add salt to taste. You'll notice they release some liquid—this is normal.

Once the mushrooms are fully cooked, add the cream.

Mix well and let cook for a few minutes. If the sauce is too thin, add the cornstarch dissolved in milk to thicken.

Add pepper and cook for 3 more minutes. Meanwhile, drain your preferred pasta.

Taste and adjust seasoning, then serve generously over your favorite pasta. Enjoy!