Dear Mr. Grammaton Cleric, if feel really terrible that I have disappointed you. I am looking forward to discuss this Stroganoff fiasco with you, maybe at a nice dinner? I buy some 600 g / 1.2 lb scotch fillet steak, 2 tbsp vegetable oil,
1 large onion (or 2 small onions),
300 g / 10 oz mushrooms,
40 g / 3 tbsp butter,
2 tbsp flour,
2 cups / 500 ml beef broth,
1 tbsp Dijon mustard,
150 ml / 2/3 cup sour cream and
Salt and pepper.
