Learn Turkish: Çorba küçük tencerede iyi pişer. - The soup cooks well in the small pot.

The verb root here is piş- (to cook). Because it is a single-syllable root ending in a consonant, it takes the -Ar suffix for the aorist (simple present) tense. Following e-type vowel harmony, it becomes -er, giving us pişer. The aorist tense is used here to state a general, timeless fact about how soup cooks.

Why is the verb pişmek instead of pişirmek?

pişmek means the food itself is cooking (like "the soup cooks"). pişirmek means someone is cooking the food (like "I cook the soup"). Because the soup is the subject doing the action in this sentence, we use pişer rather than pişirir.

Does iyi mean "good" or "well" here?

It means "well". In English, we change "good" to "well" when describing an action, but in Turkish, you can often use an adjective like iyi directly in front of a verb to act as an adverb.

Why is the adverb iyi placed right before the verb?

In Turkish, adverbs are usually placed immediately before the verb they describe. The standard word order puts the subject (Çorba) first, the location (küçük tencerede) in the middle, and then the "how" (iyi) right before the action (pişer) at the very end.