Ingredients.
1 (5 to 6 pound) rump roast
1 teaspoon salt
1/4 teaspoon black pepper
3 large onions, sliced
1/2 teaspoon onion salt
1/2 teaspoon oregano
1/2 teaspoon Italian seasoning
1 teaspoon mono sodium glutamate
1/2 teaspoon garlic salt
1/4 teaspoon basil
1/2 teaspoon seasoned salt
Bake roast the day before serving. Place rump roast in roaster or Dutch oven half filled with water; add salt, black pepper and onions. Bake, covered, in 325 degree F oven for 3 hours. Place roast and liquid in container which can be placed in refrigerator. Store overnight.
The next day, remove fat and slice beef in very thin slices. Strain liquid and add onion salt, oregano, Italian seasoning, mono sodium glutamate, garlic salt, basil and seasoned salt. Bring all ingredients to boiling point and remove from stove. Place beef slices in layers and pour sauce over each layer. Pour remaining sauce to cover meat and place in 350 degrees F oven. Bake for 30 minutes.
Serve hot on hard rolls with pepperoncini.