Chocolate Puffed rice cakes are a children’s classic and such a simple recipe to execute. Kids can easily join in all the fun. I love the mixed berries which add a bit of colour and zing to this recipe. Puffed rice is gluten free but in contrast, rice krispies, contain barley malt. Rice krispies can be substituted for puffed rice, if puffed rice is unavailable, though.