King arthur flour muffin mix is our uncompromising solution to gluten-free bakinoz our muffin mix is completely kosher and of course certified gluten-free. Additionally our cookie mix is an excellent source of whole grains. The king arthur flour company has been baking with joy since 1970. We love what we do and it shows through our products. Included is one 16 oz bag of king arthur flour muffin mix.