The term “Premium Normande Sauce 100 g” likely refers to a commercial, pre-packaged version of the classic French Normande sauce, a rich, creamy sauce traditionally made for fish and seafood. 
The “100 g” likely indicates the specific package size for a retail product.

About Normande Sauce
Classic Preparation: The traditional sauce is a velouté-based sauce (one of the five French “mother sauces”) made with fish stock, often flavored with chopped mushrooms, and enriched with a liaison of egg yolks and heavy cream.
Key Ingredients: Primary ingredients generally include fish velouté/stock, cream, butter, and egg yolks. Some variations may use white wine or cider to add flavor evocative of the Normandy region.
Flavor Profile: It has a rich, velvety, and delicate flavor profile that is designed to highlight subtle fish and seafood flavors, rather than overwhelm them.
Usage: It is most famously used in the dish sole à la normande (Normandy-style sole) but also pairs well with other poached or baked white fish, seafood, vegetables, or pasta dishes.