01 - Combine ground turkey, breadcrumbs, Parmesan, egg, garlic, parsley, oregano, salt, pepper, and milk in a large bowl. Mix gently until just combined—avoid overworking the mixture.
02 - Form the mixture into 16 golf ball-sized meatballs using damp hands to prevent sticking.
03 - Heat 2 tbsp olive oil in a large skillet over medium heat. Brown meatballs on all sides for 5–7 minutes. Remove from skillet and set aside.
04 - Add 2 tbsp olive oil to the same skillet. Sauté onion for 3–4 minutes until softened, then add garlic and cook for 1 minute until fragrant.
05 - Pour in crushed tomatoes, dried basil, dried oregano, sugar, salt, and pepper. Stir well and bring to a gentle simmer.
06 - Gently return browned meatballs to the sauce. Cover and simmer for 20 minutes until meatballs are cooked through.
07 - Stir in fresh basil just before serving. Serve hot over pasta, polenta, or with crusty bread.