Chocolate Peanut Butter Swirl Rice Crispy Bars

In a large saucepan, combine sugar and syrup. Bring to a boil and remove from heat. Add peanut butter and stir until smooth.

Add crisped rice cereal, a cup at a time, mixing well to incorporate. Set aside for 2 to 5 minutes for mixture to cool slightly.

Add chocolate chunks and stir to combine. Chocolate should melt slightly.

Transfer to a lightly oiled 13-by-9-inch pan. Cover with waxed paper and press down to spread evenly. Let cool. Cut into squares.