Then, start by blending your sweet potatoes in a food processor or a blender, make sure to discard the syrup that the yams are soaked in.
Add in the eggs, vanilla, spices, salt, sweetened condensed milk, and heavy cream and blend until smooth.
Now, pour the sweet potato mixture into your pre-baked crust and bake in the oven until the filling is slightly jiggly in the middle but set on the outside. This will take anywhere from 45-50 minutes.
Cool the pie in the turned off oven for about an hour with the door slightly propped open to avoid the pie from cracking, then cool it completely on a wire rack. Now you can either store the pie in the fridge for later or dust it with powdered sugar and serve right away.
Notes
If you want to use fresh sweet potatoes instead of the canned yams in sweet simple syrup you can use 7.5oz/210g sweet potatoes that have been boiled. (weigh the sweet potatoes after boiling them.)You will also need to add 3 tbsp brown sugar to the mixture because the canned yams come a little more sweetened than natural sweet potatoes.