definition of zesting in cooking
Q. I recently came across a recipe that called for lemon zest. A. Zest is the outermost rind of citrus fruits (usually lemons and oranges). It is valued for the strong citrus flavor it imparts to food, thanks to an abundance of perfumy, aromatic oils in the rind. To remove the zest from the fruit, use a utensil called a zester or a sharp paring knife or vegetable peeler.