栗は少なくとも１５分は茹でなくてはいけない。

Chestnuts have to be boiled for at least fifteen minutes.

栗(くり)は少(すく)なくとも１５分(ふん)は茹(ゆ)でなくてはいけない。

Kuri wa sukunakutomo ichi go fun wa yudenakute waikenai.

栗 (くり、クリ)

Japanese chestnut (Castanea crenata)

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

少なくとも (すくなくとも)

at least

一 (いち)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

五 (ご、いつ、い)

five

分 (ぶん)

part; segment; share; ration; rate; degree; one's lot; one's status; relation; duty; kind; lot; in proportion to; just as much as

茹でる (ゆでる、うでる)

to boil (something in hot water); to treat with medicinal steam (a swelling, etc.)

ば (ば)

if ... then; when; and; why don't you...?; the more (one does something); because; since

Readings: リツ、リ、くり、おののく

Meaning: chestnut

Readings: ショウ、すく.ない、すこ.し

Meanings: few, little

Readings: ブン、フン、ブ、わ.ける、わ.け、わ.かれる、わ.かる、わ.かつ

Meanings: part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100

Readings: ジョ、ニョ、ゆ.でる、う.でる

Meanings: boil, seethe