To transform these scrumptious Peanut Butter Cup Brownies into a gluten-free delight, it's all about swapping a few key ingredients while keeping the soul of the recipe intact. Start by choosing a gluten-free brownie mix; there are many fantastic options out there that offer the same rich, chocolatey goodness as traditional mixes. Next, ensure your peanut butter is labeled gluten-free, as some brands may contain additives or be processed in facilities with gluten-containing products. For the chocolate and peanut butter chips, a quick label check will help you find gluten-free varieties.