Southern Sweet Potato Pie

Ingredients

• 1 9" pie crust, homemade or store-bought
• 1 lb sweet potatoes, cooked, peeled, and mashed (see notes)
• 6 tablespoons unsalted butter, melted and slightly cooled
• 3/4 cup brown sugar
• 1 1/2 teaspoons ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/2 teaspoon kosher salt
• 1/4 teaspoon ground cardamom
• 1/4 teaspoon ground ginger
• 1 tablespoon fine yellow cornmeal
• 1 tablespoon bourbon (optional)
• 2 large Pete & Gerry's eggs
• 2 large Pete & Gerry’s eggs, egg whites only
• 1/2 cup castor sugar or granulated sugar
• 1/4 teaspoon cream of tartar
• 1/8 teaspoon kosher salt
• 1/2 teaspoon vanilla bean paste or 1 teaspoon vanilla extract