Learn Hardcore Hungarian: Az üzlet olcsó kenyeret kínál.

That -t is the accusative case marker showing that kenyér (“bread”) is the direct object. In Hungarian most singular nouns add -t, with variations like -ot/-et/-öt according to vowel harmony. Since kenyér has front vowels, you add -et, yielding kenyeret.

Why doesn't olcsó take a case ending?

Adjectives in Hungarian never inflect for case. Only the noun they modify carries the case ending. So olcsó (“cheap”) stays unchanged, and the -t goes on kenyér alone.

What exactly does kínál mean here?

kínál means “to offer” or “to provide (for sale or use).” You can think of it as the shop making cheap bread available to customers.

Why is the verb form kínál and not kínálja or kínálnak?

Hungarian verbs have indefinite and definite conjugations. You use the indefinite form when the object is indefinite (no article on kenyeret), so you get the bare stem kínál for 3rd person singular. If the object were definite, you’d use the definite form kínálja.

How would you say “The shop offers the bread” with a definite object?

Add the definite article on the object and switch to the definite verb form:

Az üzlet a kenyeret kínálja.

How do you say “a shop offers cheap bread” (indefinite subject)?

Replace the definite article az with the indefinite egy:

Egy üzlet olcsó kenyeret kínál.

Can I use an adverb instead of the adjective olcsó? How would I say “The shop offers bread cheaply”?

Yes. Turn olcsó into the adverb olcsón (“cheaply”) and place it before the verb:

Az üzlet olcsón kínál kenyeret.

How do I talk about multiple loaves (“breads”) in the object?

Form the plural kenyerek plus the accusative -et: kenyereket. With the adjective:

Az üzlet olcsó kenyereket kínál.

Is the word order fixed as Subject-Adjective-Object-Verb?

That is the neutral word order, but Hungarian is flexible. You can move elements for emphasis or contrast, e.g.:

Emphasise cheapness: Az üzlet OLCSÓ kenyeret kínál.
Emphasise the shop: AZ ÜZLET olcsó kenyeret kínál.