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["Cream shortening and sugar in a bowl until light and fluffy.", "Add mixture of flour, baking powder and salt, alternately with mixture of grape juice and milk, mixing well after each addition.", "Add vanilla.", "Fold beaten egg whites, gently into batter.", "Pour into 2 greased and floured 9"" cake pans.", "Bake at 350* for 25 minutes, or cake tests done.", "Cool in pans for 10-15 minutes.", "Turn out onto wire racks to cool completely.", "Split each layer horizontally.", "Spread 1 1/2 cups GRAPE FILLING between layers.", "Spread GRAPE FROSTING over top and side of cake.", "Drizzle remaining filling over top.", "GRAPE FROSTING.", "combine sugar, egg whites, grape juice and syrup in double boiler.", "Beat at low speed with electric mixer until well blended.", "Place over boiling water.", "Beat at high speed for 7 minutes or until stiff peaks form.", "Remove from heat; beat until of spreading consistency.", "Yield; enough frosting for 4 layers.", "GRAPE FILLING:.", "combine sugar, cornstarch, salt, grape juice and 1 cup of water in a saucepan, mix well.", "Bring to a boil over medium high heat.", "boil for 1 minute, stirring constantly.", "Remove from heat.add lemon juice and butter.", "Cool.", "Yield.enough frosting for a 2 layer cake."]
