To make this recipe gluten-free. Make sure to use certified gluten-free Rice Krispies cereal. Regular Rice Krispies contain malt flavoring. Which has gluten. However there are several gluten-free brands available. That tastes just as good. Double-check that your dulce de leche. And all other ingredients. Are also gluten-free. This small adjustment. Ensures that everyone. Including those with gluten sensitivities. Can enjoy these delightful treats. With gluten-free ingredients. You can still achieve the same delicious. Gooey, and satisfying result. Without any worry.