1/4 cup all-purpose flour
2 tsp. ground mustard seed
1 1/2 tsp. salt
1/4 tsp. black pepper
3 lbs. round steak - cut in serving-size pieces, trimmed of fat
1/4 cup butter OR shortening
2 cups beef broth
1 Tbls. Worcestershire sauce

Combine flour, mustard, salt, and pepper on a plate.
-Coat meat in flour mixture; reserve left-over flour.
-In a large skillet, brown meat in melted butter; add broth and Worcestershire sauce to skillet; simmer, covered, over low heat for 1 1/4 hours.
-Stir remaining flour mixture into skillet and whisk until thickened.