I learned the technique of reducing the lemon juice and vinegar by boiling them from my husband, Stephen. He lived in Strausburg, France, many years ago, and this was how his host family would create their various French salad dressings. Have fun creating your version! Swap out juices, kinds of vinegar, herbs, and even the oil. It is an additional step to reduce the juice, so I make a big batch of this dressing when I have the time. I keep all of my dressings in an empty Centanni bottle with a glass top. You can store it in the refrigerator to have on hand when needed.