As far as I know, the Knorr packet is only available in Europe.
Why does the sauce separate into oil and curds when the oven temperature climbs past 200°C? High heat denatures the dairy proteins in the heavy cream too quickly, forcing water molecules to squeeze out from the fat emulsion.
Onions contain complex carbohydrates that break down into simple sugars during the initial five-minute sauté. This caramelization adds depth before the baking phase. Combining cold water, white wine, and heavy cream creates a liquid medium with balanced acidity. Acidity prevents the casein proteins in the cream from coagulating prematurely. Bake the dish on the second rack from the bottom to distribute radiant heat evenly across the 400-gram chicken breast portion without scorching the surface. When scaling this preparation for larger groups, maintain the ratio of one part rice to two parts liquid to ensure proper gelatinization of starches during boiling.