One Peanut Butter Cup Protein Bar Craving peanut butter cups? Same, pretty much all the time. Satisfy that sweet tooth with a One Peanut Butter Cup Protein Bar ($25 for a 12-pack), which has a single gram of sugar and 20 grams of protein — a perfect mid-morning pick-me-up. Image Source: amazon.com One Peanut Butter Cup Protein Bar $25 from amazon.com Buy Now