Three measures, containing each the third part of an ephah. See Exodus 16:36. Upon the hearth; upon the coals, or in the warm cinders, or in an oven. He had doubtless other bread ready, but he would have new bread for them, which he thought most grateful.
Related Commentaries of Genesis 18:6
Genesis 18:6
6 And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.