Season chicken pieces with salt and pepper thoroughly.
Heat large skillet over medium-high heat completely.
Add 2 tablespoons butter to hot pan.
Cook chicken pieces until golden brown outside.
Remove chicken and set aside temporarily.
Add remaining butter to the same pan.
Sauté diced onion until soft and translucent.
Add minced garlic and cook 30 seconds.
Pour chicken broth into the hot pan.
Add uncooked egg noodles to the broth.
Bring mixture to a rolling boil quickly.
Return cooked chicken to the hot pan.
Add thyme and season with salt.
Reduce heat to medium-low temperature setting.
Cover pan and simmer 12 minutes.
Stir in heavy cream and parsley.
Cook 2 more minutes until thickened.