Has anybody had any success making a cheese sauce using Sodium Citrate that actually remains a sauce once the heat is removed? Every recipe I have tried, even though labelled "Cheese Sauce" sets into solid cheese as soon as the heat is removed, almost before I can get it on the plate!
I used Blumenthal's recipe which coats the cheese in cornstarch before adding (no sodium citrate) and it turned out well but was a lot more work than the "throw it in a bag, sous vide and blend" method

Has anybody combined the two and followed Blumenthal's method/recipe but used a water bath and blender instead?
Thanks
HW