01 - 
                Preheat oven to 350°F (175°C). Lightly grease a 12-cup muffin tin or line with cupcake liners.
              
              
              
                02 - 
                In a mixing bowl, whisk together the melted butter, sugar, and flour until well combined.
              
              
              
                03 - 
                Add eggs one at a time, whisking well after each addition to ensure a smooth batter.
              
              
              
                04 - 
                Pour in the milk, lemon juice, lemon zest, vanilla extract, and salt. Mix until smooth and well incorporated.
              
              
              
                05 - 
                Divide batter evenly among the muffin cups, filling each about 3/4 full. Bake for 22-25 minutes until set and slightly golden on top.
              
              
              
                06 - 
                Let the pies cool in the pan for 10 minutes, then transfer to a wire rack to cool completely. Just before serving, dust with powdered sugar.