Çırpıcıyı bulamayınca kremayı çatalla çırptım, ama önlüğüm yine de kirlendi.

Those are the definite direct object endings, often called the accusative in Turkish.

• çırpıcıyı = the whisk
• kremayı = the cream

In Turkish, when the object is specific or definite, it usually takes this ending.

Also, the y is a buffer consonant. It appears because both çırpıcı and krema end in vowels:

• çırpıcı + ı → çırpıcıyı
• krema + ı → kremayı

If the object were indefinite or non-specific, Turkish often leaves off this ending.

Bulamayınca means something like when I couldn’t find it, since I couldn’t find it, or not being able to find it.

It is built from:

• bul- = find
• -ama- = cannot / not be able to
• -yınca = when / since / upon

So:

• bulamayınca = when not being able to find, or more naturally, when I couldn’t find

In this sentence, it connects the first situation to the next action: I couldn’t find the whisk, so I whisked the cream with a fork.

It can feel like both, depending on context.

The suffix -ınca / -ince often gives meanings like:

• when
• once
• since
• because

Here, Çırpıcıyı bulamayınca... can be understood as:

• When I couldn’t find the whisk...
• Since I couldn’t find the whisk...

English usually forces you to choose one, but Turkish can leave that relationship a little broader.

Çatalla means with a fork.

The ending -la / -le is the instrumental/comitative suffix, and it often means:

• with
• by means of
• using

So:

• çatal = fork
• çatalla = with a fork

This is different from kremayı, which is a direct object.
Here the fork is the tool, not the thing being whisked.

Yes. They come from the same root:

• çırpmak = to beat, whisk, flap
• çırpıcı = a beater, whisk

So:

• çırptım = I whisked / I beat
• çırpıcı = whisk

The suffix -ıcı / -ici / -ucu / -ücü often makes a noun meaning something that does the action or a tool for the action.

Çırptım breaks down as:

• çırp- = whisk / beat
• -tı- = past tense
• -m = I

So çırptım means I whisked or I beat.

Because the verb already shows the person, Turkish does not need a separate word for I.

Turkish often drops subject pronouns when they are clear from the verb ending.

For example:

• çırptım already means I whisked
• so ben is unnecessary unless you want emphasis

Likewise, in bulamayınca, the subject is understood from context. Since the main verb is çırptım, we naturally understand that the same person also couldn’t find the whisk.

Because of two things:

1. Possessive ending

   • -üm here means my
   • so önlük = apron, önlüğüm = my apron

2. Consonant softening

   • the final k in önlük changes to ğ before a vowel-initial ending
   • önlük + üm → önlüğüm

This is a very common pattern in Turkish.

Because the subject is the apron, not I.

This is a very common point of confusion for English speakers.

• önlüğüm = my apron
• but grammatically, apron is still third person singular

So the verb is also third person singular:

• kirlendi = it got dirty

If the subject were I, then the verb would be first person. But here the thing that became dirty is the apron.

Ama and yine de are related, but they do different jobs.

• ama = but
• yine de = still, even so, nevertheless

So together they give a stronger contrast:

• ama önlüğüm yine de kirlendi = but my apron still got dirty

Using both is completely natural.
It is not wrong or redundant; it just emphasizes the idea that the apron got dirty despite that.

Not really. Here kirlendi means got dirty or became dirty.

It comes from kirlenmek, which is an intransitive verb meaning to become dirty.

So:

• kirlendi = it got dirty

That is different from a true passive idea like was dirtied by someone/something.

A useful contrast:

• kirlenmek = get dirty
• kirletmek = make something dirty

So this sentence is talking about a change of state, not a passive event.

Yes, it is very natural.

Turkish often puts:

1. a background or subordinate clause first
2. the main action after it
3. the verb near the end of each clause

So the structure is roughly:

• Çırpıcıyı bulamayınca = when I couldn’t find the whisk
• kremayı çatalla çırptım = I whisked the cream with a fork
• ama önlüğüm yine de kirlendi = but my apron still got dirty

This order sounds smooth and idiomatic in Turkish.