How do you add vanilla to flavor fondant accurately?

To add vanilla flavor to fondant accurately, start by using a high-quality vanilla extract or vanilla bean paste. For every pound of fondant, add about 1 teaspoon of vanilla extract, kneading it into the fondant until evenly distributed. If you prefer a more intense flavor, you can adjust the amount slightly, but be cautious as too much liquid can affect the fondant's consistency. Always taste and adjust as needed to achieve your desired flavor.