Irvine's sauce was made with horseradish and sour cream. I removed the meat and mushrooms before adding sour cream and horseradish to the pan to make the sauce. The aroma assured me that I was ...

First, I made eggs using sour cream instead of crème fraîche I began with testing out the sour cream, which isn't as rich as crème fraîche but offers a similar tangy flavor and texture.