This cranberry brisket with horseradish mashed potatoes is a delicious and flavorful dish that combines the sweetness of cranberries with the savory taste of brisket. The brisket is slow-cooked to perfection, resulting in tender and juicy meat. The cranberry sauce adds a tangy and slightly sweet element to the dish, while the horseradish mashed potatoes provide a creamy and slightly spicy accompaniment. This recipe is perfect for a special occasion or holiday meal.