Dissolve 3 packets of gelatin in one cup of water and set aside for 5 minutes.
Combine mango pulp, cool whip & sugar in a large bowl. Mix until creamy & smooth.
Heat the gelatin mixture on medium heat. Bring to a boil and simmer, stirring constantly for 5 minutes. (Mixture will feel sticky at first, but will start to soften, once it comes to a boil)
Using a strainer pour gelatin mixture over the mango pulp mixture and mix.
Pour combined mixture into two pies and refrigerate 4-5 hours.
Recipe Notes
If this is your first time working with gelatin:
Check in on your pie, in 2 hours, if it seems as though the pie has not set (ie. The mixture is still liquid), do not worry! Heat up a half a cup of water & 1 packet of gelatin. Stir continuously until mixture reaches a boil and gelatin dissolves completely. Pour into pies & mix with a spoon. Refrigerate for 2 hours or until firm.