This rich, comforting stew was brought to The Times by Regina Schrambling in 2001, in the dark days immediately following the attacks on the World Trade Center. The accompanying article was an ode to the therapeutic benefits of cooking and baking: "Whoever said cooking should be entered into with abandon or not at all had it wrong. Going into it when you have no hope is sometimes just what you need to get to a better place. Long before there were antidepressants, there was stew." This one, while complex in flavor, is not difficult to prepare, but it cannot be rushed. Make it when you have the time to indulge in the meditative qualities of chopping, sautéing, reducing, braising, waiting and tasting. You will be rewarded with an exceptionally flavorful dish that is just as satisfying to eat as it was to cook.
If necessary, add 2 tablespoons butter to the pot to augment fat. Dust beef cubes with flour, and season with salt and pepper. Shake off excess flour, and place half the cubes in the pot. Cook over medium-high heat until well browned, almost crusty, on all sides, then transfer to a bowl with onions. Repeat with remaining beef.
03Add Cognac to the empty pot, and cook, stirring, until the bottom is deglazed and the crust comes loose. Add stock, Dijon mustard and 1 tablespoon Pommery mustard. Whisk to blend, then return meat and onion mixture to pot. Lower heat, partly cover, and simmer gently until meat is very tender, about 1 1/2 hours.
04Add carrots, and continue simmering for 30 minutes, or until slices are tender. As they cook, heat 2 tablespoons butter in a medium skillet over medium-high, and sauté mushrooms until browned.
05Stir mushrooms into stew along with remaining mustard and red wine. Simmer 5 minutes, then taste, and adjust seasoning. Serve hot.