1. Heat oven to 350°F.
2. Beat butter, shortening, granulated sugar and brown sugar in large bowl until fluffy. Add eggs, orange peel and vanilla; beat until blended. Stir together flour, baking soda and salt; add alternately with orange juice to butter mixture, beating until well blended. Stir in peanut butter chips. Drop by teaspoons onto ungreased cookie sheet.
3. Bake 8 to 10 minutes or until lightly browned. Cool slightly; remove from cookie sheet to wire rack. Cool completely. Makes about 6 dozen cookies.