Fill a medium sized pot half way with water. Bring water to a boil on medium heat.
Once boiling, place sweet potatoes inside pot and continue boiling until potatoes are soft, about 45 minutes.
Preheat the oven to 375 degrees and prepare the three pie crusts.
Drain potatoes and set aside to come to room temperature. Once cooled, remove the skins and place the de-skinned potatoes inside a large mixing bowl. Mash the potatoes with an electric mixer.
Mix the rest of the ingredients inside the large bowl with the potatoes.
Divide and pour the filling into the three pie crusts, making sure not to fill them all the way to the top.
Bake in preheated oven for 45 minutes or until toothpick or cake tester comes out clean and the tops are golden brown.
Notes
Recipe Source: My mother
To test if the sweet potatoes are soft when boiling, insert a knife inside a few of them. If they are not met with resistance and the potatoes fall apart, they are ready.