My recipe also calls for clarified butter.
Often used instead of usli ghee, it should not be used as a substitute for clarified butter.
The traditional recipe for rich hollandaise sauce -- useful for glorifying asparagus or to blanket eggs Benedict at brunch -- calls for clarified butter.
Roden uses a mixture of melted butter and vegetable oil for this purpose, and Der Haroutunian goes for clarified butter, but I can't see the benefit of either, although a professional will no doubt be able to enlighten me.
In between were some landmark wines, including a 1935 Simi Vineyards, a 1946 from Inglenook, a 1948 from the legendary Martin Ray and two versions of the 1951 Beaulieu Vineyards Georges de Latour Private Reserve, one fined (wine jargon for clarified) with egg whites, the other with gelatin.
At each dilution along the standard curve, the reading for the null control (lysate dilutions without P450) was subtracted from the reading for each P450 variant to control for clarified lysate background.
