1 tbsp. butter
1 tsp. flour
1 tsp. chopped green pepper
1 tbsp. chopped celery
1/2 tsp. salt
1/8 tsp. dry mustard
1/8 tsp. coarse pepper
1 c. chicken stock

Melt butter, add flour, stir until smooth. Slowly add stock, mustard, salt and pepper. When smooth add celery, green pepper and cook 10 minutes in double boiler. Add 2 cups cut up steak. Heat and serve.