My own recipe for Sweet Potato Pie (which
claims to be a genuine Southern recipe) is unusual in that there are
no seasonings in it except for vanilla. I really like it, because then you really taste all the flavor of the sweet potato itself, not covered up by any spices. My husband used to say that he had never cared much for sweet potato pie until he tasted my recipe. (But that's not to say that I don't plan to try out the OP recipe, which replaces the evaporated milk and vanilla in my own recipe with cream, wine and brandy -- ooh la la!

)
Sweet Potato Pie
Combine in bowl:
2 boiled, mashed sweet potatoes (about 1 cup)
3/4 cup sugar
1/2 cup evaporated milk
1 egg
1/4 cup (1/2 stick) butter
1 Tbsp. vanilla
Blend until smooth.
Pour into unbaked pie crust.
Bake at 350° for 45 to 60 minutes.