01 - 
                Pre-bake a 23 cm pie crust using your preferred method until golden brown. Set aside to cool completely.
              
              
              
                02 - 
                Melt butter in a medium saucepan over medium heat. Add brown sugar and stir continuously for 2 minutes until fully dissolved and smooth.
              
              
              
                03 - 
                In a separate bowl, whisk cornstarch, salt, and whole milk until smooth and lump-free. Gradually whisk this mixture into the saucepan with the melted sugar.
              
              
              
                04 - 
                Beat egg yolks in a small bowl. Slowly add a small amount of the hot mixture to the yolks, whisking constantly. Return the tempered yolks to the saucepan and mix thoroughly.
              
              
              
                05 - 
                Cook the filling mixture over medium heat, stirring continuously until the custard thickens to a pudding-like consistency, approximately 5 to 8 minutes. Do not let the mixture come to a boil.
              
              
              
                06 - 
                Remove the saucepan from the heat. Stir in vanilla extract until evenly incorporated.
              
              
              
                07 - 
                Pour the warm butterscotch filling into the cooled pie crust. Use a spatula to level the surface.
              
              
              
                08 - 
                Cover the surface of the pie with plastic wrap and refrigerate for at least 4 hours or overnight until the filling is set.
              
              
              
                09 - 
                Before serving, adorn the chilled pie with whipped cream and sprinkle with chopped pecans. Slice and serve cold.