Good-Cooking - Ann Landers' Best-Ever Lemon Pie and Meringue

Ingredients

• 1 baked 9-inch pie shell
• 1 1/4 cups granulated sugar
• 6 tablespoons cornstarch
• 2 cups water
• 1/3 cup lemon juice
• 3 egg yolks
• 1 1/2 teaspoons lemon extract
• 2 teaspoons vinegar
• 3 tablespoons butter
• 1 tablespoon cornstarch
• 2 tablespoons cold water
• 1/2 cup boiling water
• 3 egg whites
• 6 tablespoons granulated sugar
• 1 teaspoon vanilla extract
• Pinch of salt