Ingredients

• 6 eggs
• 1 cup sugar
• 1 1/2 cups finely chopped walnuts
• 1 cup graham cracker crumbs
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 teaspoon cinnamon
• 1 tablespoon grated lemon, zest of
• 1 tablespoon fresh lemon juice
• 1 cup sifted icing sugar
• 4 teaspoons fresh lemon juice (or more)
• 1/4 cup coarsely chopped walnuts
• 1 large apple, peeled,cored and grated