Boil the pasta.

Brown the beef adding in the Duxelles. Add the spice and herbs to the beef.

Add the Worcestershire sauce, and butter. When the butter is melted add the flour.

Incorporate everything in the skillet stirring often till the flour is cooked, about 5-7 minutes.

Add the broth and stir allow to thicken. Remove from heat adding in the sour cream. Stir in well.

Serve meat mixture over the noodles. I hope you enjoy!!!