In a saucepan, combine cherries, balsamic vinegar, honey, olive oil, garlic, salt, and pepper. Bring to a simmer over medium heat and cook for about 10 minutes until the cherries soften and the mixture thickens slightly.

Preheat the oven to 400°F (200°C). Season the pork tenderloin with salt and pepper. Heat a skillet over medium-high heat and sear the pork on all sides until browned, about 5 minutes.

Transfer the seared pork to a baking dish and brush generously with the cherry balsamic glaze. Bake in the preheated oven for 20-25 minutes, or until the internal temperature reaches 145°F (63°C).

Remove the pork from the oven and let it rest for 5 minutes before slicing. Drizzle with additional glaze and garnish with chopped parsley before serving.