1.) preheat oven to 425°f. 2.) in a shallow baking dish add tomatoes, onion, garlic cloves, rosemary, butter, olive oil, balsamic, wine, salt, sugar + pepper. give it a mix and toss in the oven for 15-20 minutes. 3.) once that’s in the oven, start boiling water to cook the spaghetti. cook according to package directions. 4.) when tomatoes are done roasting, remove from the oven and remove the rosemary sprig and garlic cloves. add cooked spaghetti immediately and toss well. 5.) serve up with fresh rosemary and parmesan on top!