Slow Sunday cooking has its own kind of comfort. It is the kind of day when the kitchen finally feels calm, the Dutch oven stays on the stove without hurry, and everything has time to come together slowly. The beef softens until it almost falls apart, the mushrooms bring a deep earthiness, and the creamy mustard sauce wraps around everything with a cozy richness. It is simple to prepare, but the result tastes like a meal you linger over on a cool fall evening. Ingredients 850