Mom'S Beef Roast - cooking recipe

Ingredients

3 lbs roast (I use whatever...round, pot roast....whatever is on sale!)
2 tablespoons red wine vinegar
pepper
garlic powder
1 envelope onion soup mix

Preparation

Place roast in roaster pan and sprinkle with vinegar, pepper, garlic powder and the onion soup mix.
Cover roaster and bake at 325\u00b0-350\u00b0 for at least 3-4 hours.
The last hour of cooking I remove the lid to brown the roast a bit.
Then with the drippings, I make gravy (remove roast and cover with foil. Heat the drippings on the stove over fairly high heat. Add more water if necessary, and bring to a boil. Whisk in a slurry of flour and water (fairly thick) stirring constantly to avoid lumps. Adjust salt and pepper.).