Kommentar zu Schemot 16:23

את אשר תאפו אפו THAT WHICH YOU WOULD BAKE, BAKE whatever you wish to bake (cf. Onkelos: די אתון עתידין למפא and Rashi on אז ישיר משה) in the oven bake to-day — all that you will need for two days; and what you require to boil of it in water boil to-day. The expression baking applies to bread, (cf. Rashi on Genesis 40:1) and the expression boiling to a cooked dish.

BAKE THAT WHICH YE WILL BAKE. Rashi explained: “Whatever you wish to bake in the oven or boil in water, bake and boil today — all [that you require] for two days.” If so, the purport of the verse is as follows: “That which you would bake of the two omers you have, bake today, and that which you would boil of the two omers, boil now, and all that remaineth for you after eating to the full today, lay up for you to be kept until the morning.” In the morning [of the Sabbath-day], when the Israelites saw that it did not spoil, they came before Moses, since they did not want to eat the manna of yesterday even though Moses had permitted it to be kept until the morning. Then Moses permitted them to eat it on that Sabbath-day only “because it was for that purpose of which I said to keep it for a charge.” He further informed them of the reason of the commandment, for today ye shall not find it in the field,³⁹⁹Verse 25. since G-d does it so because it is a holy Sabbath unto the Eternal.⁴⁰⁰Verse 23 before us. It is possible that by saying and all that remaineth over, He did not set any measure for that. Rather, they could eat at will on the sixth day, as the remainder would suffice for the Sabbath, because it is the blessing of the Eternal.⁴⁰¹Proverbs 10:22.
And Rabbi Abraham ibn Ezra explained: “That which you would bake ordinarily — namely, the [daily] omer known to you — bake for your use today; and all that remaineth, namely, the second omer, lay up for you to be kept until the morning. At that time, Moses did not tell them what to do with the second omer. It was on the following morning [the Sabbath], that he told them, eat that today.”³⁹⁹Verse 25. But if so, they ate the manna on the Sabbath raw, without baking it or seething it in pots and making cakes of it as it was their custom to do.⁴⁰²Numbers 11:8. The first interpretation, [that of Rashi], is more correct, and so is the opinion of Onkelos.⁴⁰³Onkelos translated: “That which you intend baking, etc.” By adding the word athidin (intend), Onkelos intimated his understanding of the verse to be similar to that of Rashi: “that which you intend baking of the two omers, bake today, etc.” This is unlike the explanation of Ibn Ezra, who interpreted the verse as meaning: “that which you would bake ordinarily — [i.e., one omer] — bake today, and the other omer leave over till the morning,” thus resulting in their eating the omer on the Sabbath in an unprepared state.

את אשר תאפו, the portion of each day’s ration which they would bake in an oven. The subject has been referred to again in Numbers 11,8 as ועשו אותו עוגות “they would make it into cakes.”