Chestnut Torte

Name: Chestnut Torte (Gesztenyetorta)
Yield: 8 to 12 servings
Cuisine: Hungary
Ingredients: Butter; Chestnut Filling; Flour; Chocolate, grated or shaved; ¼ cup flour; ½ cup finely ground walnuts; Salt; ¾ cup sugar; 10 egg whites