Best Southern Buttermilk Pie

Ingredients

• 1½ cups granulated sugar

• 3 tablespoons all-purpose flour

• 3 large eggs

• 1 cup buttermilk

• ½ cup unsalted butter, melted

• 1 tablespoon lemon zest (lightly packed)

• 3 tablespoons fresh lemon juice

• 1 teaspoon pure vanilla extract

• 1 (9-inch) unbaked pie crust (homemade or store-bought)

Instructions:

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