PROBLEM TO BE SOLVED: To provide a liquid seasoning for microwave oven heat/steam cooking which not only yields a favorable quality of cooking ingredients including vegetables and having been evenly and thoroughly seasoned thereby by simply cooking the ingredients thus seasoned but can also cook a steamed dish without compromising the physical appearance thereof because of the unnecessity of mixing cooking ingredients during and after cooking.SOLUTION: The starch-containing liquid seasoning of the present invention is used on an occasion for heating/steam-cooking, within a microwave oven, ingredients including vegetables while being mixed as a seasoning at a ratio lesser than that of the cooking ingredients. The lipid content of the same is 1 mass% or above and 15 mass% or below. The salt content of the same is 4 mass% or above and 8 mass% or below. The Brix of the same is 23% or above and 32% or below. The viscosity of the same at normal temperature is 800 mPa s or above and 3500 mPa s or below.COPYRIGHT: (C)2015,JPO&INPIT【課題】野菜類を含む具材にかけて調理するだけで全体へ均一に味が染みて好ましい品質となるだけでなく、調理中及び調理後に具材を混ぜる必要がないため、外観も損なわない蒸し料理を調理可能な電子レンジ加熱蒸し調理用液状調味料の提供。【解決手段】本発明は、野菜類を含む具材を電子レンジで加熱蒸し調理するにあたり、具材に対してそれよりも少量混合して用いられる澱粉含有の液状調味料である。脂質の含有量が1質量%以上15質量%以下である。塩分の含有量が4質量%以上8質量%以下である。ブリックスが23%以上32%以下である。常温での粘度が800mPa・s以上3500mPa・s以下である。【選択図】なし