Beef with olive

For the shallot marmalade: 2 tablespoons unsalted butter 10 shallots, sliced crosswise into approximately 1/4-inch-thick rings 1 cup sugar 1/2 cup sherry[...]

1 4-to 4 1/2-pound flat-cut (also called first-cut) beef brisket, trimmed of most fat 2 tablespoons olive oil 1 14 1/2-ounce can diced tomatoes in juice[...]

Beef: 1 4- to 5-pound trimmed whole beef tenderloin, tail end tucked under, tied every 3 inches 2 teaspoons coarse kosher salt Sauce: 4 tablespoons (1/2[...]