Line baking sheets with wax paper.

Beat peanut butter and margarine until creamy. Beat in powdered sugar until mixture holds together and is moistened. Shape into 1-inch balls; place on baking sheets and freeze for 1 hour.

Melt chocolate chips and shortening in a microwave-safe bowl on HIGH for 1 minute; stir. If necessary, microwave an additional 15 seconds, just until chips are melted being careful not to scorch chocolate.

Dip peanut butter balls in melted chocolate, using a toothpick. Leave a portion of the center uncovered. Return to baking sheets and refrigerate until chocolate is set.

Store in covered container in refrigerator.

Yield: 6 dozen

Nutrition Information per serving:
95 Calories; 5g Fat (42.8% calories from fat); 2g Protein; 12g Carbohydrate; 1g Dietary Fiber; 0mg Cholesterol; 53mg Sodium.  Exchanges: 0 Grain(Starch); 0 Lean Meat; 1 Fat; 1/2 Other Carbohydrates.