First, the correct spelling is Sauce Diane (whipped-cream and truffled-finished game sauce) Simply a poivade sauce that has whipped cream folded in just before service. Classically, small moon crescent shaped truffle is added at the end.
France
Steak Diane is a popular dish of filet mignon with a rich cream sauce, often prepared and flamed at the table. Food Network chef, Emeril Lagasse, has good, easy-to-follow recipe that is sure to impress!
Tomato sauce is lower in fat that cream sauce. Most people agree that less fat is healthier.
Yes, however it will change the flavor in the sauce.
You can put cream sauce on many potato dishes. A common one is mashed potatoes and cream gravy.
Only if the cream sauce is artificial and contains no cream, milk, or any milk derivative. Or if the steak is vegetarian.
no
Sugo Rosa (pink sauce)
salad cream
Rahm is German for cream. It is a sauce used on numerous German dishes.
Cream reduction sauce