Add the first 4 ingredients to a pan over medium high heat and simmer until nearly dry
Add the water and reduce a little again, then strain.
In a metal mixing bowl, add the eggs and the reduction.
Over a pot of simmering water, whisk the eggs and the vinegar reduction with a wire whisk until it thickens — but doesn’t start to scramble.
Add a little of the clarified butter and incorporate that into the sauce fully.
Slowly add the rest of the butter, making sure to incorporate it fully.
The mix should have the consistency of thickened cream and a glossy surface. Remove from the heat.
Add a little salt, a little lemon juice, and a little cayenne pepper to taste.
The sauce can now be ‘held’ in a warm place for around an hour. Add a little water if it becomes to thick.