– 1/2 lb or 226 gr of elbow macaroni – 1 cup heavy cream (or half and half) – 1 cup whole milk – 1/2 stick of butter – 1/4 cup of all purpose flour – 1 1/2 cups of sharp cheddar – 1 cups of mild cheddar – 1/2 tsp of salt – 1/2 tsp of pepper – 1/2 tsp smoked paprika – 1/4 tsp garlic powder – 1/4 cup sour cream