True Blue Spell

The True Blue Spell is a magic spell that Papa Smurf used on Smurfette in order to make her a real Smurf.

Mainstream Smurfs Media
The spell appears in the cartoon show episode "The Smurfette", it is used after Smurfette reveals that she was created by Gargamel in order to destroy the Smurfs. The ingredients in the spell include: Once the ingredients have been added, an incantation must be said before a wand is used to finish the spell. The incantation goes:
 * a touch of venus
 * add moonbeams for light
 * add some smurfroot... to smurf her up right
 * And now with the power of all I command! Smurfette become Smurf and before me stand.

The Smurfs 2
The spell also appears in the 2013 movie, The Smurfs 2, but the ingredients required are different. The ingredients include:
 * Four hopeful thoughts
 * a dab of royal jelly
 * mimosa pollen
 * a drop of mink oil
 * one loving truth