It takes a higher proportion of lemon juice than vinegar to make a good sauce. Oil to vinegar is usually 3:1, oil to lemon is more like 2:1, so start there and play around with it.

(@ J: And just who started this thread with the words, "I have been watching some cooking shows lately...?" smile)

"I don't know which is worse: ignorance or apathy. And, frankly, I don't care." - Anonymous