Melt the butter and remove from the heat.
Add the salt/cayenne/tarragon and a little pepper to the butter as its cooling. Wait till cooled to continue.
Add the egg yolks to a blender or a food processor and blend. Add the lemon juice and blend for several seconds. With the blender on, slowly drizzle in the melted butter. Turn off the blender, add in a little salt and cayenne and whip it again until combined. Check the lemon juice, if you need more add a little, less is better to start with, you can add but you can't take it out. |