Classic Lemon Bars

Ingredients

• 1/2 lb (16 Tbsp) unsalted butter, room temperature
• 1/2 cup granulated sugar
• 1 1/2 tsp vanilla extract
• 2 cups all-purpose flour
• 1/4 tsp salt
• 7 large eggs, room temperature
• 3 cups granulated sugar
• 2 Tbsp lemon zest (from 4 to 5 lemons)
• 1 cup freshly squeezed lemon juice (from 5 large or 8 medium lemons)
• 1 cup all-purpose flour
• Confectioners’ sugar, for dusting