Classic Butter Pecan Cookies - Perfect Holiday Treat - Quickie Recipe

Ingredients

• 1 3/4 cups chopped pecans.
• 1 cup plus 1 tablespoon butter, softened, divided.
• 1 cup packed brown sugar.
• 1 large egg, separated, room temperature.
• 1 teaspoon vanilla extract.
• 2 cups self-rising flour.
• 1 cup pecan halves.