Specialty Gluten Free Flours-Italian Chestnut Flour (14 ounce) Imported from Italy, our chestnut flour is full of sweet, nutty flavor. The perfect ingredient for adding more flavor to all your baked goods. Substitute up to one-third of the recommended flour in your favorite recipes with chestnut flour. And unlike other nut flours, chestnut flour is remarkably low in fat and has a low glycemic index.