====== Beef Stroganoff ======

===== Ingredients =====

  * 1 1/2 lbs (0.7 kg) flank steak 
  * 1 tbsp rosemary salt
  * 1 tbsp black pepper 
  * 1/3 cup (40 G) flour + 2 tbsp corn starch 
  * 2 tbsp onion powder
  * 2 tsp garlic powder
  * 15 button mushrooms 
  * 1 yellow onion
  * 8 sprigs of stripped thyme 
  * 2 tbsp unsalted butter 
  * 3/4 cup (177 ml) dry white wine 
  * 1 1/2 cup (354 ml) beef stock 
  * 1 tbsp Dijon mustard
  * a dash of Worcestershire sauce
  * 1/4 cup (60 ml)  heavy cream
  * 1/2 cup (60 ml) sour cream

  * garnish with a dollop of sour cream and fresh parsley leaves 

===== Procedure =====
  - Slice beef and season with rosemary salt
  - Whisk together flour, cornstarch, onion powder and garlic powder
  - Place all of the beef into the flour mixture and coat
  - Place beef into a colander and shake off excess flour 
  - Heat a skillet with beef fat or oil of choice
  - Sear the meat - don't over crowd the pan - add oil as needed
  - Slice mushrooms
  - Saute the mushrooms in the same pan used for the beef - remove when browned
  - Julian slice the onion
  - Saute the onion the same pan add oil as needed to start.
  - Cook until browned
  - Add garlic and thyme
  - saute for two minutes
  - Add dry white wine
  - Return mushrooms to pan
  - Saute until most of the wine has evaporated
  - Add the beef stock
  - Turn up heat and reduce by 80%
  - Add the mustard and mix in
  - Add a dash of Worcestershire sauce and mix in
  - Add cream and sour cream
  - Mix and heat the sauce
  - Add the beef and heat through
  - Add butter and melt into the sauce