Try this homemade Invisible Ink recipe the whole family will love. Made with onion juice, lemon juice and sugar. Easy step-by-step instructions included.
This Invisible Ink relies on simple, everyday ingredients such as drops onion juice, drops lemon juice and grains sugar (count them). It comes together quickly and makes 4 servings, at about 1714 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026