Stir-fry is a tasty way to eat more vegetables, but I am often asked how to make the stir-fry sauce. The trick is knowing a few key sauce ingredients, and then learning how to tweak the basic recipe to make your favorite type of stir-fry sauce like sesame, sweet & sour, or my favorite, lemon. Then you have the flexibility to combine your sauce with a variety of vegetables and protein choices. You make it easily, because I've broken it down into a few simple formulas.