To make these Delicious Buttery Biscuits gluten-free. Substitute the Bisquick. With a gluten-free all-purpose baking mix. Ensure your baking mix includes a blend of rice flour, potato starch, and tapioca flour. For the best texture. The rest of the ingredients. Like 7-Up and sour cream. Are naturally gluten-free. So no need to worry about those. Just follow the same steps. And you’ll have fluffy, buttery biscuits. That everyone can enjoy. Without compromising on taste. Or texture. Perfect for those with gluten sensitivities. Or anyone looking to try something different!