Good-Cooking - Barefoot Contessa Lemon Cake

Ingredients

• 1/2 pound unsalted butter, at room temp
• 2 1/2 cups granulated sugar
• 4 extra-large eggs at room temp
• 1/3 cup grated lemon zest (6-8 large lemons)
• 3 cups all-purpose flour
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon kosher salt
• 3/4 cup freshly squeezed lemon juice
• 3/4 cup buttermilk at room temp.
• 1 teaspoon pure vanilla extract
• Glaze
• 2 cups confectioners' sugar
• 3 1/2 tablespoons freshly squeezed lemon juice