Ingredients

  • 13 cup butter, softened
  • 1 cup sugar
  • 3 egg whites
  • 14 cup sour cream
  • 1 teaspoon vanilla
  • 1 12 cups flour
  • 2 teaspoons baking powder
  • 14 teaspoon salt
  • 13 cup milk
  • 1 (10 ounce) packagesliced frozen sweetened strawberries, thawed
  • 1 tablespoon cornstarch

Method

  • Heat oven to 350.
  • Combine butter and sugar in large bowl.
  • Beat at medium speed, scraping bowl often, until creamy.
  • Add egg whites and continue beating until light and fluffy.
  • Stir in sour cream and vanilla.
  • Reduce speed to low; add flour, baking powder, salt and milk.
  • Beat just until combined.
  • Spread batter into greased and floured 8" square baking pan.
  • Bake for 30 to 35 minutes or until toothpick inserted in center comes out clean.
  • Cool completely.
  • Meanwhile, combine strawberries and cornstarch in a saucepan.
  • Cook over medium heat, stirring occasionally, until mixture boils and thickens, about 4 to 5 minutes.
  • Cool 15 minutes.
  • Spoon strawberry mixture onto cake, spreading evenly.
  • Cover and refrigerate until chilled for at least 2 hours.
  • Serve with whipped cream, if desired.