Old-Fashioned Buttermilk Coconut Pie

Ingredients

• Dough for single-crust pie
• 1 cup sugar
• 3 large eggs
• 1/2 cup buttermilk
• 1/2 cup unsalted butter, melted and cooled
• 2 tablespoons all-purpose flour
• 1-1/2 teaspoons vanilla extract
• Dash salt
• 1-1/2 cups sweetened shredded coconut