Directions:

Step 1
Slice steak into thin strips.

Step 2
Slice onions into rings then in half.

Step 3
Fast fry beef in 2 or 3 small batches 30 seconds a side and set aside on a plate.

Step 4
Put all the beef back in the fry pan and add onion then mushrooms.

Step 5
Cook for about 2 or 3 minutes then add flour and stir in well..

Step 6
Add beef stock and stir in.

Step 7
When the flour is mixed in, mix in the yoghurt and sour cream and stir till smooth.
Step 8
Simmer for another 5 minutes and take off the heat.

Step 9
Serve over cooked broad egg noodles.