5 - 6 lb. plain brisket
1 pkg. onion soup mix
2 c. catsup
1/4 c. Worcestershire sauce
2 tbsp. brown sugar
1 1/2 tsp. dry mustard

Place brisket in a big piece of heavy foil. Sprinkle onion soup mix on top. Mix the other ingredients and pour over brisket. Seal in foil. Put in covered roaster.

Bake at 300°F for 3 1/2 to 4 hours without looking at it. Take out and slice.