I've yet to find a recipe for peanut butter balls that requires baking. Here's a sampling of 3 found, all similar.
PEANUT BUTTER BALLS
1 1/3 c. creamy peanut butter
1 1/2 sticks butter
1 lb. powdered sugar
Mix and shape in balls about the size of marbles.
PEANUT BUTTER BALLS
2 c. powdered sugar
1 1/2 c. peanut butter (chunky or smooth)
3 tbsp. butter
1 tsp. vanilla
Cream all ingredients. Roll in walnut size balls and chill a few hours.
PEANUT BUTTER BALLS
1 c. sifted powdered sugar
1/2 c. creamy peanut butter
3 tbsp. butter, softened
1 lb. dipping chocolate or confectioners' sugar
In a mixing bowl, stir together powdered sugar, creamy peanut butter and butter until their combined. Shape candy into 1 inch balls; place balls on a baking sheet lined with waxed paper. Let the balls stand about 20 minutes or until dry.
Melt the dipping chocolate or confectioners' coating. Dip the peanut butter balls into the melted chocolate. Let stand until dry. Store tightly covered in a cool dry place. Makes about 30 pieces.