Whisk honey powder and water together in a small saucepan.

Bring mixture to a boil, stirring to make sure honey powder dissolves, and cook for 1 to 2 min.

Remove from heat and add hibiscus and lavender.

Cover and allow mixture to steep until room temperature, about 20 min.

Strain and store in a sealed container in the refrigerator.

Use within 2 weeks.