01 - Pat short ribs dry and season generously with kosher salt and black pepper on all sides.
02 - Heat olive oil in a large Dutch oven over medium-high heat. Brown short ribs in batches until deeply caramelized, about 3 minutes per side. Transfer to a plate.
03 - Lower heat to medium. Add chopped onion and diced carrots. Cook until vegetables are softened, stirring occasionally, about 5 minutes.
04 - Stir in minced garlic and tomato paste. Cook for 1 minute until fragrant.
05 - Pour in red wine and scrape up any browned bits from the pan. Simmer for 3 minutes. Add beef stock, cherries, thyme sprigs, and bay leaf.
06 - Return short ribs to the pot, ensuring they are mostly submerged. Bring to a gentle simmer, cover, and braise for 2.5 hours, or until meat is fork-tender.
07 - While ribs braise, combine water and milk in a saucepan; bring to a boil. Gradually whisk in polenta. Reduce heat to low and cook, stirring frequently, for 25 minutes until thick and creamy.
08 - Stir in butter, Parmesan cheese, parsley, and chives. Adjust seasoning with salt and pepper.
09 - Spoon herbed polenta onto plates, top with braised short ribs and cherry sauce. Garnish with additional fresh herbs if desired.