Almond flour is naturally gluten-free, as it is made from ground almonds without any added wheat or grains. Recipes that specifically call for almond flour as the primary flour are often gluten-free. This makes it a popular choice for individuals who need to avoid gluten due to celiac disease or non-celiac gluten sensitivity. However, it's essential to remember that the overall recipe can still contain gluten if other ingredients used in the recipe, such as baking powder, certain flavorings, or mix-ins, contain gluten. To ensure a recipe is entirely gluten-free, you need to carefully select all the ingredients and confirm that they do not contain gluten or are labeled as gluten-free. However, you should still exercise caution and read ingredient labels to ensure that all components of the recipe are free from gluten. If you need to maintain a strict gluten-free diet, consider using certified gluten-free ingredients to reduce the risk of cross-contamination.