Beef Stroganoff

Directions

1. 1
   In large pan, heat oil over medium high heat; brown steak and onion.
2. 2
   Add bouillion, hot water, salt, ketchup, and mustard, mixing until thoroughly distributed. Bring to a boil.
3. 3
   Reduce heat, cover and simmer for 2 hours. Check every half hour or so to make sure the water does not evaporate too much. Add more hot water if needed to keep meat covered.
4. 4
   Combine cornstarch and cold water; add to meat mixture, stirring constantly until mixture thickens, similar to thick gravy.
5. 5
   Reduce heat, stir in sour cream and heat through.
6. 6
   Serve over wide noodles or rice.