How Far In Advance Can You Make Marzipan Decorations?

How Far In Advance Can You Make Marzipan Decorations? At least 1/2 hour or up to 2 weeks before shaping: In a medium bowl, mix almond paste, egg whites, vanilla and almond extracts. Add powdered sugar, 1 cup at a time, and knead until marzipan is no longer sticky. If making ahead, wrap in plastic