Au gratin potatoes with real cheddar cheese, au gratin

Potatoes (potatoes, dextrose, potassium sorbate [to protect flavor], disodium pyrophosphate [to maintain color]), cheese sauce (water, canola oil, cheddar cheese (pasteurized milk, cheese culture, salt, enzymes, annatto [color]), modified corn starch, corn starch, whey, contains less than 2% of nonfat dry milk, rice flour, salt, sodium hexametaphosphate, yeast extract, mono-and diglycerides, blue cheese (milk, cultures, salt, enzymes), cream, acetic acid, sodium phosphate, citric acid, turmeric color, yellow 6, annatto extract (color), natural flavors, enzymes), water, cheddar cheese (pasteurized milk, cheese cultures, salt, enzymes, annatto [vegetable color], powdered cellulose [to prevent caking], potassium sorbate and natamycin [presevatives]), parmesan cheese (imported parmesan cheese [pasteurized part-skim cow's milk, cheese cultures, salt, enzymes], hard grating cheese [food starch, water, palm oil, cellulose, salt, lactic acid, whey, sodium phosphate, sodium citrate, lactic acid, sorbic acid, potassium sorbate, artifical color], powder cellulose added to prevent caking, natamycin [a natural mold inhibitor]), paprika.