====== Beef stroganoff ======
===== Ingredients =====
  * 1 lb beef stew meat
  * 2 tbsp vegetable oil
  * 1 large onion, sliced
  * 10 oz mushrooms, sliced
  * 3 tbsp butter
  * 2 tbsp flour
  * 2 cups beef broth
  * 1 tbsp Dijon mustard
  * 2/3 cup sour cream
  * salt and pepper
  * egg noodles
  * chopped chives, for garnish

===== Instructions =====
  - Use your fist (or rolling pin or mallet) to flatten the steaks to about 1/3" thick. Slice into 1/5" strips, discarding excess fat.
  - Sprinkle with a pinch of salt and pepper.
  - Heat 1 tbsp of oil in a large skillet over high heat. Scatter half the beef in the skillet. **Quickly** spread the beef with tongs. Leave untouched for 30 seconds until browned, then quickly turn and brown the other side for 30 seconds. Immediately remove onto a plate. Don't worry about pink bits and raw insides.
  - Add remaining 1 tbsp oil and repeat with remaining beef.
  - Turn heat down to medium high. Add butter and melt. Add onions, cook for 1 minute, then add mushrooms.
  - Cook mushrooms until golden. Scrape the bottom of the pan to loosen the golden bits.
  - Add flour. Cook, stirring, for 1 minute.
  - Stir in half the broth. Once incorporated, add the other half.
  - Stir, then add sour cream and mustard. Stir until incorporated (don't worry if it looks split; sour cream will "melt" as it heats).
  - Bring to a simmer, then reduce heat to medium low. Once it thickens to the consistency of pouring cream (3--5 minutes), adjust salt and pepper to taste.
  - Add beef back in (including plate juices). Simmer for 1 minute, then remove from stove immediately.
  - Serve over egg noodles. Sprinkle with chives if desired.

===== Sources =====
  * https://www.recipetineats.com/beef-stroganoff/