Nabisco owns the Oreo brand. They are the same company behind Ritz crackers, Triscuit, and Chips Ahoy.
As recently as a few years ago, Oreo held 40% of the cookie market. It’s America’s iconic snack cookie. Face it—if you don’t feel like making cookies at home, the first grocery variety that pops into your head is the cream-stuffed Oreo.
Ingredients in Oreos
Sugar, enriched flour, canola/palm/soybean oil, alkali-processed cocoa, high fructose corn syrup, cornstarch, leavening, salt, soy lecithin, vanillin, chocolate.
Aside from HFCS, which presumably sweetens the creamy center of the Oreo, the only questionable additive is vanillin, the artificial vanilla-soundalike flavoring.
If you’re interested, Smitten Kitchen has a great writeup on making homemade Oreos. I’ve tried this recipe before and it turns out very well. However: Sugar overload.