Italian Almond Cake
["10 oz. unpeeled almonds (approximately 2 c.)", "1 to 1 1/3 c. granulated sugar", "8 egg whites", "1/2 tsp. or less salt", "peel of 1 lemon (zest with white pith)", "6 Tbsp. flour"]
["You will need an 8 or 9-inch spring-form pan, buttered."]
["unpeeled almonds", "sugar", "egg whites", "salt", "lemon", "flour"]