Roast Beef and Pan Gravy for Beginners

Ingredients
For Dry Brine:

3 1/2 to 4 teaspoons kosher salt (use 1 teaspoon per pound of beef)

1 teaspoon ground black pepper

1 teaspoon granulated garlic

3 1/2 to 4 pounds top round beef roast (sometimes sold as “London Broil”)

For Roast and Pan Gravy:

1 tablespoon vegetable oil

1 yellow onion, diced

3 cups torn miatake (hen-of-the-woods) mushrooms, or any mushrooms

1/2 teaspoon kosher salt

2 tablespoons melted butter

1 tablespoon cold butter

1 tablespoon all-purpose flour

2 tablespoons sherry vinegar or any wine vinegar

2 cups high quality, low-sodium beef broth

salt and freshly ground black ...