Bring 2 cups of water to a boil in a medium saucepan. Add the cranberries, remove from the heat and let rest 1 hour, drain, reserving the soaking liquid and place in the bowl of a food processor. Add the pine nuts, cinnamon, cloves, brown sugar, cascabel powder, and a few tablespoons of the soaking liquid. Pulse until coarsely chopped, remove to a bowl and stir in the cilantro.
Place the tenderloin on a work surface and season on both sides with salt and pepper to taste. Spread a thin layer of the stuffing down the center, fold each side over the filling, and tie with a butcher's twine and dredge lightly in the flour.
Preheat oven to 400 degrees F.
Heat the oil in a oven proof saute pan until smoking. Saute the tenderloin on all sides until golden brown. Place in the oven and roast until almost cooked through about 8 to 10 minutes. Remove and let rest 10 minutes. Slice into 1 inch pieces.
Heat oil in a medium saucepan over medium heat. Add the onions, carrot and celery and cook until soft, about 8 to 10 minutes. Add the garlic and cook for 2 minutes. Add the stock, juice concentrate, chipotle puree and peppercorns, increase the heat to high and cook the sauce until reduced to 2 cups, about 15 to 20 minutes.
Strain the sauce into a small saucepan and bring to a simmer. Whisk in the butter and season with salt and pepper to taste.