Ash cake
Ash cake (also known as Ash bread; Fire cake) is a type of bread baked over a layer of heated stones or sand and covered-over in hot ashes, a practice still found principally in Arabian countries, especially among Bedouins.

Epiphanius (c. 310–403), in his work entitled "On Weights and Measures", brings down an anecdote about the practice of baking ash cakes, and which, in Hebrew, Epiphanius calls "ʿuġôth" (, modern meaning: "cakes"), adding that it is the bread described in , when Sarah, the wife of Abraham, was enjoined by her husband to knead three measures of fine meal and to bake cakes for the angels.

When the bread (fine flour) has been kneaded and has afterward fermented, it is kneaded again. They bake this bread not in an oven but on a rock. Collecting smooth stones and piling them upon the ground, by means of much brushwood they heat them until they make of the smooth (stones) glowing embers. Then they remove the ashes from them, cover them with dough, and again spread the ashes over all the dough, spreading it out as one loaf, and hence it is called "hidden," because [it is] concealed in the ashes.

According to Epiphanius, the Hebrew name for this bread is derived, etymologically, from its manner of being baked as "bread that is hidden." Once the bread is baked, it is removed from the ashes, and the ashes brushed-off the bread before allowing it to cool.
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On Weights and Measures
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measures
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Ash cake
Concept
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NUMBER
spouse
spouse