Ingredients

  • 1/2 cup Gluten-Free Flour Blend (see below)
  • 1/3 cup sugar
  • 1/4 cup cold Land O Lakes Butter
  • 3 Land O Lakes Eggs (whites only)
  • 1/2 teaspoon cream of tartar
  • 1/2 cup sugar
  • 1/2 teaspoon gluten-free vanilla
  • 1 1/2 cups water
  • 1 cup sugar
  • 1/3 cup cornstarch
  • 3 Land O Lakes Eggs (yolks only)
  • 1/3 cup lemonade concentrate, undiluted
  • 1 tablespoon Land O Lakes Butter
  • 1/2 teaspoon salt
  • 1/2 cup sour cream

Method

  • Heat broiler.
  • Combine flour blend and 1/3 cup sugar in bowl; cut in 1/4 cup butter until mixture resembles coarse crumbs.
  • Place into 15x10x1-inch baking pan.
  • Broil 3 to 4 inches from heat, watching closely and stirring every minute, 3-4 minutes or until golden brown and crunchy.
  • Cool completely.
  • Set aside.
  • Heat oven to 275F.
  • Beat egg whites and cream of tartar in bowl at high speed until foamy.
  • Continue beating, gradually adding 1/2 cup sugar, until stiff peaks form and mixture is glossy.
  • Stir in vanilla.
  • Spread in bottom and up sides of greased 9-inch deep dish pie plate.
  • Bake 45-55 minutes or until lightly browned.
  • Turn off oven.
  • Cool in oven 1-2 hours.
  • Combine water, 1 cup sugar and cornstarch in 2-quart saucepan.
  • Cook over medium heat, stirring constantly, 5-7 minutes or until mixture comes to a boil.
  • Continue cooking 1 minute.
  • Gradually stir 1/2 cup sugar mixture into beaten egg yolks with whisk.
  • Gradually stir egg mixture into remaining hot mixture.
  • Continue cooking stirring constantly, 2-3 minutes or until mixture thickens.
  • Remove from heat.
  • Stir in lemonade concentrate, 1 tablespoon butter and salt.
  • Cover; refrigerate 1 hour.
  • Stir sour cream into cooled filling mixture.
  • Spoon cooled filling mixture into meringue shell; sprinkle with topping.
  • Cover; refrigerate until serving time.