Peanut Butter Bark
*To toast nuts, heat oven to 350 degrees. Spread nuts in thin layer on a cookie sheet, bake 8-10 min; Cool.
Place chocolate in medium microwave safe bowl. Microwave for 1 minute; stir If necessary cook for an additional 30 seconds at a time, stirring after each heating, until chocolate is melted and smooth when stirred.
Immediately place peanut butter chips and shortening in second microwave safe bowl. Heat for one minute in microwave; stir. If necessary cook an additional 30 seconds at a time, stirring after each heating, until chips are melted and mixture is smooth when stirred; stir in nuts.
Alternately spoon above mixtures onto prepared tray; swirl with knife for marble effect. Cover; refrigerate until firm. Break into pieces.