Batangan Lemon Sempurna

Bahan-bahan (12 porsi)

• 3/4 cup butter, (softened)
• 2/3 cup confectioners' sugar
• 1 -1/2 cups plus 3 tablespoons all-purpose flour, (divided)
• 4 large eggs
• 1 1/3 cups granulated sugar
• 2 teaspoons grated lemon zest, (from about 2 large lemons)
• 2/3 cup freshly squeezed lemon juice, (from 3 to 4 large lemons)
• 1/3 cup milk
• Additional confectioners' sugar for sprinkling on top