Combine all ingredients for dough, knead well.

Press three-quarters of dough into 10- by 16-inch baking pan. Spead a layer of apricot jam over dough.

Beat egg whites until stiff.  Add sugar, beat until peaks form.  Fold in cocoa, juice and nuts. Spead over dough.

Add 1/3 cup flour to remaining fourth of dough. Grate and sprinkle over filling.

Bake at 350 degrees Fahrenheit for 45 minutes until golden brown.