סימן מח סעיף ב
מַהוּ פַּת הַבָּאָה בְּכִיסְנִין. יֵשׁ אוֹמְרִים שֶׁהִיא פַּת שֶׁנַּעֲשֵֹית כְּמִין כִּיסִים, מְמֻלָּאָה בְּפֵּרוֹת אוֹ בְּבָשָׁר אוֹ בִּגְבִינָה (עַיֵּן אה"ע) וְכַיּוֹצֵא בָּהֶן, וְכֵן כְּשֶׁנַּעֲשֵֹית כְּמוֹ צַפִּיחִית (פלאדין). וְיֵשׁ אוֹמְרִים שֶׁהִיא פַּת שֶׁנִּלּושָׁה בְּשֶׁמֶן אוֹ בְּשֻׁמָּן אוֹ בִּדְבַשׁ אוֹ בֶּחָלָב אוֹ בְּבֵיצִים אוֹ בִּשְׁאָר מֵי פֵּרוֹת, אֲפִלּוּ עֵרֵב בּוֹ גַּם מַיִם, אֶלָּא שֶׁהֵם הַמּוּעָט וַאֲנָן נַקְטֵינָן כְּדִבְרֵי שְׁנֵיהֶם לְהָקֵל, וּמַחְזִיקִין אֵלּוּ לְפַת הַבָּאָה בְּכִיסָנִין.
What is bread made as kisnin? Some [poskim] say: that it is bread made in the shape of pockets, filled with fruit meat or cheese or with similar things, or when it is made like a "strudel" [fruits and nuts rolled in dough and baked]. And other [poskim] say: that it is bread kneaded with oil, or fat or honey, or milk, or eggs or fruit juices, even if they were also mixed [with] water, as long as it is less than half [the liquid].2The difference between the two opinions is that the first speaks of a regular bread-dough-flour and water baked with other foods added into it. The second opinion holds that the dough itself may not be regular bread-dough to be considered kisnin. Rather it must be kneaded with liquid that is less than half water, the majority being oil, juice, milk, etc. Only then are the special requirements of bread such as netilas yadayim, Hamotzi, Birkas Hamazon, not required. We accept both opinions in order to be lenient and we consider both [kinds of baked goods] as "bread that comes with kisnin."3Therefore, both of the above kinds of bread have as their berachah, Borei minei mezonos, and are exempt from all the special requirements of regular bread.
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)