PROBLEM TO BE SOLVED: To provide, by a simple method, oil and fat having a milk fat-like flavor and milk food products with an enhanced milk fat-like flavor, capable of imparting, even to milk food products with no or a low milk fat content, a milk fat-like flavor similar to an excellent milk flavor specifically derived from milk-fat.SOLUTION: Oil and fat having a milk fat-like flavor include 10-2000 wt.ppm yeast extract or with additional 2-300 wt.ppm malonylisoflavone glycoside, and have an enhanced milk taste with a prolonged effect.SELECTED DRAWING: None【課題】乳脂肪を含まない、あるいは含有量を減少させた食品でも、乳脂に由来する特有の芳醇な乳風味に近似した乳脂様風味を強化し、さらに乳脂様風味が強化された乳脂様風味油脂および乳系食品の平易な方法での提供。【解決手段】酵母エキス10~2000重量ppm又は、更にマロニルイソフラボン配糖体2~300重量ppmを含有する、乳味の増強及び持続効果を有する乳脂様風味油脂。【選択図】なし