Buttermilk Sweet Potato Pie (Print Version)

# Ingredients:

01 - 2 medium sweet potatoes.
02 - 1 refrigerated pie crust.
03 - 4 tablespoons unsalted butter, melted.
04 - 1 1/2 tablespoons lemon juice.
05 - 1/2 teaspoon nutmeg.
06 - 1/2 teaspoon cinnamon.
07 - 1/2 teaspoon salt.
08 - 3 large eggs, separated.
09 - 1/2 cup granulated sugar.
10 - 2 tablespoons light brown sugar.
11 - 2 tablespoons all-purpose flour.
12 - 3/4 cup buttermilk.

# Instructions:

01 - Bake sweet potatoes at 400°F for 1 hour on baking sheet. Cool and peel.
02 - Bake pie crust at 450°F for 9-11 minutes until golden. Cool and reduce oven to 375°F.
03 - Mash 1 1/4 cups sweet potato with butter, lemon juice and spices. Whisk yolks with sugars, then combine with potato mixture and flour.
04 - Beat whites to soft peaks. Fold into filling with buttermilk.
05 - Pour into crust and bake at 375°F for 35-40 minutes.

# Notes:

01 - Sweet potatoes can be baked 48 hours ahead.
02 - Place potatoes on baking sheet to catch drips.