Stick 'em Up Apples

6 wooden craft sticks
6 medium apples
1 cup semisweet chocolate chips
1 cup peanut butter chips
1 tablespoon vegetable oil
1 cup chopped peanuts (optional)

Insert a wooden stick into the top of each apple. Place chips and oil in microwave-safe bowl. Microwave about 3 minutes, stopping to stir every 30 seconds, until melted. Dip apples in chocolate-peanut butter mixture, coating well; roll in peanuts, if desired. Place on wax paper-lined baking sheet; chill until firm.