I had a recipe like this and it's not in my book! argh!
Are you thinking about these, or the 4 ingredient ones?
This is from a recipe site that I have relied on many times:
Chocolate Covered Peanut Butter Balls
1 cup butter or margarine
1 1/4 cups peanut butter, smooth or chunky
1 pound powdered sugar
3 1/2 cups Rice Krispies.
6 ounces chocolate chips
1/2 large Hershey candy bar, chopped
2 1/2" square paraffin, shaved
Melt butter in a heavy 2 quart saucepan over low heat. Add peanut
butter, stir until well blended. Remove from heat. Combine sugar
and Rice Krispies in a large bowl. Pour hot peanut butter mixture
over all. Mix thoroughly using hands. Shape into 1 inch balls.
Place on wax paper lined cookie sheets. Cover and refrigerate 1
hour. Combine chocolate chips, Hershey Bar, and paraffin in top of
double boiler. Place over hot water until melted. Dip chilled
peanut butter balls in chocolate mixture to coat. Place on wax
paper lined sheets to set chocolate. When dry, store in refrigerator.