Za doručak sam jela toplu kiflu s pekmezom, a brat kiflu sa salamom.

Both sam jela and jela sam are possible in Croatian, but sam jela is the more neutral word order here.

Jela is the past active participle of jesti (to eat), and it shows:

• past time
• gender
• number

In this sentence, jela tells us the speaker is:

• female
• singular

So:

• ja sam jela = I ate / I was eating said by a woman
• ja sam jeo = the same idea, but said by a man

Croatian past tense is usually formed with:

• the auxiliary biti (sam, si, je, smo, ste, su)
• plus the participle

So sam jela literally works like have eaten / ate, depending on context.

Yes, za doručak literally means for breakfast, and in Croatian it is the normal way to say what someone had as a meal.

Examples:

• Za doručak sam jela kiflu. = I had a bread roll for breakfast.
• Za ručak smo jeli juhu. = We had soup for lunch.
• Za večeru jeo je ribu. = He had fish for dinner.

Here za takes the accusative case, so:

• doručak stays doručak because it is masculine inanimate singular, and accusative looks the same as nominative here.

So this phrase is best learned as a common expression:

• za doručak = for breakfast
• za ručak = for lunch
• za večeru = for dinner

Because kiflu is in the accusative case, and the adjective has to match it.

The direct object of jela is toplu kiflu (a warm bread roll), so both words change into accusative singular feminine:

• nominative: topla kifla
• accusative: toplu kiflu

This is normal adjective-noun agreement in Croatian. The adjective must match the noun in:

• gender
• number
• case

So:

• topla kifla = a warm bread roll as the subject or dictionary form
• jela sam toplu kiflu = I ate a warm bread roll

Because it is the direct object of the verb jesti.

In Croatian, the thing you eat is usually in the accusative:

• Jela sam kiflu. = I ate a bread roll.
• Pio sam kavu. = I drank coffee.
• Kupila je knjigu. = She bought a book.

Since kifla is a feminine noun, its accusative singular is:

• kifla → kiflu

That is why both clauses have:

• toplu kiflu
• kiflu sa salamom

There is no difference in meaning here. Both mean with.

Croatian uses:

• s
• or sa

The longer form sa is often used for easier pronunciation, especially before words beginning with certain consonants, very commonly s, š, z, ž, or awkward consonant clusters.

So:

• s pekmezom sounds fine
• sa salamom is easier to pronounce than s salamom

Both pekmezom and salamom are in the instrumental case, because s/sa meaning with requires instrumental.

Examples:

• s prijateljem = with a friend
• sa sestrom = with a sister
• s mlijekom = with milk
• sa sirom = with cheese

Because after s/sa meaning with, Croatian uses the instrumental case.

So:

• pekmez → pekmezom
• salama → salamom

This is a very common pattern.

More examples:

• s maslacem = with butter
• sa šunkom = with ham
• s medom = with honey
• sa sirom = with cheese

So in your sentence:

• kiflu s pekmezom = a bread roll with jam
• kiflu sa salamom = a bread roll with salami

Because Croatian often omits repeated words when they are easy to understand from context.

The full version would be something like:

• Za doručak sam jela toplu kiflu s pekmezom, a brat je jeo kiflu sa salamom.

But since je jeo is obvious from the first clause, Croatian can leave it out:

• ..., a brat kiflu sa salamom.

This kind of omission is very natural and common. English does something similar:

• I had a roll with jam, and my brother one with salami.
• I drank tea, and she coffee.

So the second part is shorter, but the meaning is still clear.

Because a often links two parallel or contrasted pieces of information.

Here the sentence is comparing two breakfasts:

• I had a warm bread roll with jam
• my brother had a bread roll with salami

So a works well because it suggests while / whereas / and on the other hand.

Very roughly:

• i = and, simple addition
• a = and / while / whereas, often with contrast or comparison

Examples:

• Ja pijem čaj, a ona kavu. = I drink tea, and she drinks coffee / whereas she drinks coffee.
• On je visok, a brat nizak. = He is tall, and his brother is short.

In your sentence, a sounds more natural because the two people are being compared.

Because Croatian does not have articles like English a/an and the.

Whether something is definite or indefinite is usually understood from:

• context
• word order
• stress
• sometimes extra words like taj (that) or jedan (one / a certain)

So:

• kiflu can mean a bread roll or the bread roll, depending on context
• brat can mean brother / the brother / my brother, depending on what is already understood

In this sentence, English needs articles, but Croatian does not.

Yes, in context it is very likely understood as my brother.

Croatian often leaves out possessives like moj, tvoj, njegov when the relationship is obvious.

So:

• brat can simply mean brother
• in this context, after I ate..., it naturally suggests my brother

If you wanted to make it explicit, you could say:

• a moj brat kiflu sa salamom

But that is not necessary unless you want emphasis or clarity.

Yes. Kifla usually refers to a bread roll or pastry-like roll, often crescent-shaped, though usage can vary by region.

It is a very common everyday bakery item in Croatian and neighboring languages. In English, the best translation depends on context:

• bread roll
• roll
• sometimes crescent roll, if shape matters

So in this sentence, kifla is just an ordinary food item someone might eat for breakfast.

Yes. Croatian word order is fairly flexible, although some versions sound more neutral than others.

The given sentence:

• Za doručak sam jela toplu kiflu s pekmezom, a brat kiflu sa salamom.

is natural and clear.

Other possible versions include:

• Sam jela toplu kiflu s pekmezom za doručak, a brat kiflu sa salamom.
  This is possible, but less neutral.
• Jela sam za doručak toplu kiflu s pekmezom, a brat kiflu sa salamom.
• Za doručak jela sam toplu kiflu s pekmezom, a brat kiflu sa salamom.

The differences are mostly about emphasis and style, not basic meaning.

A learner should usually treat the original version as a good neutral model.

Because the adjective toplu is only stated in the first clause.

This could mean either:

1. only the speaker’s roll is being described as warm, or
2. the sentence simply does not bother repeating the adjective in the second clause

Croatian often avoids repeating words unless necessary.

If you wanted both to clearly have warm rolls, you could say:

• Za doručak sam jela toplu kiflu s pekmezom, a brat toplu kiflu sa salamom.

If you leave it as:

• a brat kiflu sa salamom

then the focus in the second clause is mainly on the different filling: salami instead of jam.