½ cup Butter 113.5g
1 large Onion, Chopped 150g
¾ lb Fresh Mushrooms, Sliced 340.2g
1 lb Beef Sirloin, Cut Into 1-inch Cubes 453.6g
10.5 oz can Condensed Beef Consomme With Gelatin Added, Divided
3 cloves Garlic, Minced 9g
3 tbsps Ketchup 51g
2 tbsps Worcestershire Sauce 34g
1 tsp Salt, Or To Taste* 6g
½ tsp Freshly Ground Black Pepper, Or To Taste* 1.15g
3 dashes Hot Pepper Sauce (such As Tabasco), Or To Taste*
2 tbsps All-purpose Flour 15.6g
8 oz Container Sour Cream 226.8g* Optional