Preheat the oven to 425 degrees F.
Sprinkle the pork with 1 teaspoon salt and 3/4 teaspoon pepper. Heat 2 tablespoons of the butter in a large, heavy nonstick skillet over medium-high heat until hot. Brown the pork on all sides, about 5 minutes total. Add the shallots and cook, stirring occasionally, until golden, about 4 minutes. Stir in the broth and preserves along with 3/4 teaspoon salt and 1/2 teaspoon pepper. Transfer the skillet to the oven and roast until an instant-read thermometer registers 135 degrees F, 12 to 14 minutes.
Transfer the pork to a cutting board and let rest 10 minutes. Bring the skillet to a boil over high heat and reduce the sauce to a glaze, about 6 minutes.
Flour the top and bottom of the biscuits and cut into 3/4-inch cubes (about 16 cubes per biscuit). Toss the cubes in flour to prevent them from sticking.
Melt the remaining butter in a large skillet over medium-high heat. When butter has fully melted, turn the heat to high. Add the biscuit cubes and toss in the butter to coat all sides, stirring frequently, until the dough has puffed and begins to color. Add the garlic and continue cooking until golden brown. Then add the rosemary and continue cooking until the cubes are browned and the rosemary is fragrant, 6 to 8 minutes total. Remove the cubes to a paper-towel-lined baking sheet and season liberally with salt.
Slice the pork into 1-inch medallions and serve with cherry glaze and rosemary puffs.
From Food Network Kitchens