The Essence of Pure Flavor in the small crystal vial.
The Essence of Pure Flavor or Helmut Spargles' Magic Liquid was a distillation of pure flavor. He claimed it could be used to allow "the inner flavor of any dish to blossom forth". It was given to Bender upon his completion of a dish deemed "acceptable", despite the fact that it ultimately killed Helmut. He used it during his match against Elzar on Iron Cook, which won him the title of Iron Cook and even caused Morbo the anchor monster to cry.
The liquid was kept in a small crystal vial, which Bender mistook as a "diamond vial of Mrs. Dash". Upon analysis, the liquid was discovered to be composed of two hydrogen atoms covalently bonded with one oxygen molecule (water) infused with lysergic acid diethylamide, the results of which caused Fry to go to the conclusion that it was Bender's confidence that helped him succeed.
The name of the ingredient is possibly a reference to Aji-No-Moto, meaning 'the essence of taste' in Japanese, the first and still largest brand of monosodium glutamate (MSG) product.