juice and zest of half a lemon.(if you want the sauce more lemony, you can add a dash more juice at the end).
¼cupwater
½tspsugar
3 tbspcold unsalted butter(for a creamier sauce add more butter)
1tbspfinely chopped herb(optional and your choice depending on preference and what you are adding the sauce to. It could be parsley, tarragon, oregano or dill).
salt to taste
Instructions
On a medium to low fire, melt a tablespoon of unsalted butter. Add the finely chopped shallot and cook until soft. About a minute.
Add the juice and zest of half a lemon (you can always add more juice at the end if want it more lemony), a 1/4 cup of water, a teaspoon of sugar and on a high heat reduce to about a third of the volume. About 2 minutes.
Turn the fire on very low and blend in 2 to 3 tablespoons of cold unsalted butter, one tablespoon at a time. The trick is to keep stirring the butter and emulsify it with the lemon juice.
Optional -blend in 1 Tbs chopped herbs and stir for one minute to infuse sauce.