In a large bowl, beat egg whites, cream of tartar and salt at medium speed until foamy. Add sugar a little at a time, beating well. Add extracts. Continue beating until stiff glossy peaks form. Grease the bottom only of a 9-in. tube pan with removable bottom. Spread batter evenly in pan. Place in a preheated 450° oven and immediately turn off heat. Let stand in oven overnight. The next day, loosen edges of torte with sharp knife and turn onto serving platter. Just before serving, whip cream until stiff; tint with food coloring if desired. Frost with cream and top with berries.