אורח חיים תס״גOrach Chayim 463

Se’if 1א׳

מֻתָּר לַחְרֹךְ שְׁנֵי שִׁבֳּלִים בְּיַחַד, וְלֹא חַיְישִׁינָן שֶׁמָּא יֵצְאוּ מַיִם מֵאַחַת לַחֲבֶרְתָּהּ, שֶׁהֵם מֵי פֵּרוֹת וְאֵינָם מַחְמִיצִים.

Whether it is permitted to roast two bundles of grain together and the laws of karmel (roasted grain). Containing 3 paragraphs: It is permitted to roast two bundles of grain together, and we are not concerned that perhaps moisture will pass from one to the other, as they are fruit juices and they do not cause leavening.

Se’if 2ב׳

ותיקא שֶׁהוּא תַּבְשִׁיל הֶעָשׂוּי מִשֶּׁמֶן וּמֶלַח עִם קֶמַח, מֻתָּר וְהוּא שֶׁלֹּא יְהֵא בּוֹ מַיִם. הַגָּה: וּלְדִידָן שֶׁנּוֹהֲגִין לְהַחְמִיר בְּמֵי פֵּרוֹת, גַּם זֶה אָסוּר.

Vitika, which is a dish made from oil and salt with flour, is permitted, provided that it does not contain water. Rema: And according to our custom, which is to be stringent with fruit juices, this too is forbidden.

Se’if 3ג׳

כַּרְמֶל שֶׁמְּהַבְהֲבִין אוֹתוֹ בָּאוּר וְטוֹחֲנִין אוֹתוֹ, אֵין מְבַשְּׁלִים הַקֶּמַח שֶׁלּוֹ בְּמַיִם שֶׁמָּא לֹא נִקְלָה בָּאוּר יָפֶה, וְנִמְצָא מַחְמִיץ כְּשֶׁמְּבַשְּׁלִים אוֹתוֹ, וְכֵן כְּשֶׁמּוֹלְלִין הַקְּדֵרוֹת הַחֲדָשׁוֹת פֵּרוּשׁ שֶׁנּוֹתְנִים קֶמַח לְתוֹךְ הַמַּאֲכָל לְהַקְפּוֹת, אֵין מְבַשְּׁלִים בָּהֶם אֶלָּא מַצָּה אֲפוּיָה שֶׁחָזְרוּ וְטָחַנּוּ אוֹתָהּ.

Fresh ears that are singed in the fire and ground — one may not cook their flour in water, lest they were not roasted well in the fire, and it is found to become leaven when it is cooked. And likewise when they thicken the new pots — that is, put flour into the food to thicken it — one may cook in them only baked matzah that was ground again.