Preheat the oven to 325°F (160°C).
Place the corned beef brisket in a large pot or Dutch oven. Add the onion, garlic, and beef broth.
Bring the pot to a boil over medium heat, then reduce the heat to low and cover. Let it simmer for about 2 hours, or until the meat is tender.
Once cooked, carefully remove the brisket from the pot and place it in a baking dish.
In a mixing bowl, combine the brown sugar, Dijon mustard, apple cider vinegar, black pepper, ground cloves, and paprika. Mix until well combined.
Brush the glaze generously over the cooked corned beef.
Place the baking dish in the preheated oven and bake for an additional 30 minutes, brushing with more glaze every 10 minutes.
After 30 minutes, remove the corned beef from the oven and let it rest for about 10 minutes before slicing.
Serve warm, sliced against the grain, with your choice of sides.