Vanilla Extract Alternative: If vanilla beans aren't available, you can use 2 teaspoons of high-quality vanilla extract. Add it after removing the butter from the heat. Adjust Sweetness: Taste the peach butter during the simmering process and adjust the amount of sugar or honey to your liking. Storage: Properly sealed jars of Peach-Honey-Vanilla Butter can be stored in a cool, dark place for up to 1 year. Once opened, refrigerate and use within a few weeks.