You will need a deep pot and a skillet. In your deep pot over medium-high heat melt 1 TBSP of butter. Add in 1 tsp of minced garlic. Saute until fragrant. Pour in entire jar of marinara, broth,1 cup of heavy cream, and entire box of pasta. Sprinkle with salt, pepper, garlic powder (about 1/2 tsp of each). Cover with a lid and bring to a boil. Check on it in about 4-5 minutes. Stir and cook on medium-low until the sauce thickens up and clings to the noodle and the noodles are tender. Stir in one cup of grated parmesan until melted.