1 cup flour    
1/2 cup butter
5 tablespoons powdered sugar
2 eggs beaten    
1 1/2 cups sugar
1/4 cup flour        
3/4 teaspoon salt
2 cups diced rhubarb

Mix flour, butter and powdered sugar until crumbly and pat into a 9-by-13 cake pan.  Bake at 350 degrees for 15 minutes or until set. Then mix together remaining ingredients. Pour over the crust and bake at 350 degrees for 35 minutes. Serve when completely cooled.