For the second time totally awesome! Recipe by yummly. 1/2 tsp Garlic. Homemade Alfredo Sauce Ingredients: To make this American-style Alfredo sauce recipe, you will need the following ingredients: Butter: Or you could also substitute olive oil, if you prefer. Garlic: Finely-minced or pressed. It hails from 1920s Rome, where it was created by restaurateur Alfredo di Lelio. 1 cup Parmesan cheese, grated. Produce. 2 cups 1 pint heavy whipping cream. Organic Alfredo Sauce Ingredients. 1 tsp Italian seasoning. 1/4 tsp Salt. 1/4 tsp Pepper. 1/2 cup Butter. 22. A luscious, creamy Alfredo sauce is a culinary dream—a handful of ingredients that add up to something wonderful. All-purpose flour: To help form a roux and thicken the sauce. Check out the list of ingredients for a very popular brand of organic alfredo sauce:. Dairy. Baking & spices. 1 tsp Garlic powder. 9 ingredients. 4 oz Cream cheese.