1 3/4 cups all purpose flour
1 tsp. baking powder
2 egg yolks
1/2 cup shorteneing
2 Tbsp. sugar
1/2 cup chopped walnuts
Filling:
4 cups chopped fresh or frozen rhubarb
2 cups sugar
2 egg yolks
1/4 cup all purpose flour
Meringue
4 egg whites
1/2 cup sugar
1 tsp. vanilla extract
Combine first six ingredients with a fork until crumbly. Press into a greased 13 x 9 inch baking pan. Combine filling ingredients and mix well. Pour over crust. Bake at 350 degrees for 50 to 60 minutes. In a mixing bowl, beat egg whites until stiff. Gradually add sugar and vanilla, beating well. Spread over hot filling. Return to the oven for 10 to 15 minutes or until lightlly browned.