Step 1

Cook pasta in salted water until al dente or as per package instructions. I recommend to add pasta to boiling water at same time as you add broth to mushrooms.

Step 2

Preheat large deep skillet on medium heat and melt butter.

Step 3

Add onion and cook for 3 minutes, stirring occasionally.

Step 4

Add thyme and cook for 30 seconds, stirring often.

Step 5

Add mushrooms and garlic. Cook uncovered on medium-high heat for 10 minutes, stirring occasionally.

Step 6

In a medium bowl, whisk broth, cornstarch, salt and pepper. Add to skillet, bring to a boil, reduce heat to low and let sauce simmer for 5 minutes.

Step 7

Don't forget to add pasta to boiling water now as well.

Step 8

Turn off heat, add yogurt and stir. Garnish with more pepper to taste and dill/parsley.

Step 9

Serve over pasta garnished with parmesan cheese.