-
Line a baking sheet with waxed paper; set aside.
-
In a medium bowl, mix peanut butter, butter, vanilla, and confectioners' sugar with hands to form a smooth stiff dough. Shape into balls using 2 teaspoons of dough for each ball.
-
Place on prepared pan, and refrigerate hours or freeze 1 hour until firm.
-
In a double boiler over medium heat, melt the chocolate and shortening. Whisk together until smooth.
-
Remove balls from refrigerator or freezer. Insert a wooden toothpick into a ball, and dip into melted chocolate.
-
Return to wax paper, chocolate side down, and remove toothpick. Repeat with remaining balls. Refrigerate for 30 minutes to set.