Hiihin! Make a Delicious Bread! (ヒヒーン! 馬味(うま)いパンを作れ!, Hi hiin!! Umai pan wo tsukure) is the 4th episode of Yakitate!! Japan. It aired on November 2, 2004.
It's Azuma and Kawachi's first day of work at the Southern Tokyo Branch of Pantasia. Tsukino, their new supervisor, teaches Kazuma how to make French bread. When they hear that the manager, afro-wearing Matsushiro Ken, must sample it before it can be sold in the bakery, they seek him out at a horse race track. Instead of tasting the bread, he throws it to a horse, who will eat it or reject it. He tells the two of them to make a bread delicious enough to be eaten by a horse. When they return to the store, Tsukino tells them his story - his sister nearly died from eating bread because of an unknown allergy to dairy. Henceforth, he aims to make a bread that anyone can eat, even those with allergies. Horses will eat this type of bread because although they love wheat, they hate butter and dairy products.