01 - Preheat your oven to 350°F (175°C).
02 - Season the duck's cavity and exterior generously with kosher salt and freshly ground black pepper. Insert the orange quarters and fresh thyme sprigs into the duck's cavity.
03 - Position the prepared duck, breast side up, on a roasting rack within a large roasting pan. Roast for 1 hour and 30 minutes, periodically basting the duck with the rendered pan juices to ensure even cooking and moisture.
04 - Increase the oven temperature to 425°F (220°C). Continue roasting for an additional 10 minutes to achieve a delightfully crispy skin. Carefully remove the duck from the oven, loosely tent it with aluminum foil, and allow it to rest for a minimum of 15 minutes before carving. This resting period is crucial for juicy meat.
05 - While the duck is roasting, begin preparing the cherry sauce. In a small saucepan over medium heat, melt the unsalted butter. Add the finely minced shallot and sauté until softened and translucent, which typically takes about 2 minutes.
06 - Add the pitted cherries, dry red wine, low-sodium chicken stock, balsamic vinegar, and honey to the saucepan. Bring the mixture to a gentle simmer and cook for 10-12 minutes, stirring occasionally, until the cherries soften and the liquid slightly reduces, concentrating the flavors.
07 - In a small bowl, whisk together the cornstarch and cold water to form a smooth slurry. Stir this cornstarch slurry into the simmering cherry sauce. Continue to cook for an additional 2-3 minutes, stirring constantly, until the sauce visibly thickens to your desired consistency. Taste and adjust seasoning with salt and pepper as needed.
08 - Carve the rested roasted duck into desired portions. Serve immediately, generously drizzling each portion with the warm, luscious cherry sauce.