Heat oven to 350 degree F. Melt butter or margarine in a 9x9x2-inch baking pan in the oven (about 6 minutes). Remove from oven. Stir crushed crackers into melted butter or margarine; press mixture firmly and evenly onto bottom of pan using a wooden spoon. Set aside.

Combine the ricotta cheese, egg, sugar, flour, orange peel, and almond extract in a blender container or food processor bowl; blend or process until smooth. Carefully spread cheese mixture over crumb mixture. Combine the almonds or hazelnuts, cherries, and raisins; sprinkle over cheese layer. Bake for 25 to 30 minutes or until edges are puffed and golden. Cool in pan on a wire rack for 1 hour; cover and chill for 2 hours. Cut into bars. Makes 20.

Store cooled bars in tightly covered container in the refrigerator for up to 3 days.