melt in the mouth

melt in (one's)/the mouth

Of food, to be soft or tender, and, typically, delicious. The phrase is often quite literal. This decadent chocolate cake positively melts in the mouth. I've never had such a perfect steak in my life! I swear, it melted in my mouth.
See also: melt, mouth

melt in the mouth

(of food) be deliciously light or tender and need little or no chewing.
See also: melt, mouth