I haven't seen Reese's Pieces on store shelves since the early 1990s. I was very surprised to find them available at Costco. This candy reminds me a lot of M&Ms but its crunchy shell is the only thing they have in common.Reese's Pieces are a combination of chocolate and peanut butter, but it tastes like a very sweet creamy peanut butter. If you loves Reese's Peanut Butter Cups then this is a must try.