Teyzem tahinle pekmezi karıştırıp küçük bir tabağa koydu.

Teyzem means my aunt.

• teyze = maternal aunt
• -m = my

So:

• teyze → aunt
• teyzem → my aunt

Turkish very often adds possessive endings directly to the noun instead of using a separate word like my.

Also, Turkish distinguishes different kinds of aunts:

• teyze = mother’s sister
• hala = father’s sister

So teyzem specifically means my mother’s sister.

Because Turkish usually expresses possession with a suffix attached to the noun.

Examples:

• kitap = book
• kitabım = my book
• ev = house
• evim = my house
• teyze = aunt
• teyzem = my aunt

So instead of saying something like my aunt, Turkish naturally says aunt-my.

Yes. Tahinle means with tahini, and it is the shortened form of tahin ile.

• tahin = tahini / sesame paste
• ile = with
• tahin ile → tahinle

This shortening is very common in Turkish:

• arkadaşımla = with my friend
• kalemle = with a pen
• suyla = with water

So tahinle pekmezi karıştırdı means she mixed the pekmez with tahini.

Because pekmezi has the definite accusative ending -i.

Here:

• pekmez = pekmez
• pekmezi = the pekmez / pekmez as a specific direct object

In Turkish, a specific direct object usually takes the accusative ending.

Compare:

• Pekmez karıştırdı. = She mixed some pekmez. / She did pekmez-mixing.
• Pekmezi karıştırdı. = She mixed the pekmez. / She mixed that specific pekmez.

In your sentence, pekmezi is the direct object of karıştırıp.

Because the sentence treats pekmez as the direct object and tahin as the thing used with it.

Structure:

• tahinle = with tahini
• pekmezi = the pekmez
• karıştırıp = mixing / having mixed

So the grammar is basically:

My aunt mixed the pekmez with tahini...

Turkish often does this with karıştırmak:

• X ile Y’yi karıştırmak = to mix Y with X

You could also reverse the roles:

• Pekmezle tahini karıştırdı. = She mixed the tahini with pekmez.

That is also grammatical; it just makes tahini the direct object instead.

Karıştırıp comes from karıştırmak = to mix, plus the converb ending -ıp / -ip / -up / -üp.

So:

• karıştır- = mix
• karıştırıp = having mixed / and mixed / after mixing

In this sentence, it links two actions done by the same subject:

1. she mixed it
2. she put it onto a small plate

So the sense is:

• She mixed the tahini and pekmez and put it onto a small plate.
• or After mixing the tahini with the pekmez, she put it onto a small plate.

This -ıp form is very common in Turkish for chaining actions together.

Examples:

• Kapıyı açıp içeri girdi. = He opened the door and went in.
• Çayı yapıp masaya getirdi. = She made the tea and brought it to the table.

Because Turkish often uses several verbs in a chain, but only the last one is fully conjugated for tense.

Here:

• karıştırıp = non-finite linking form
• koydu = main finite verb, marked for past tense

So the sentence literally works like:

My aunt, mixing the pekmez with tahini, put it onto a small plate.

But in natural English, you would usually translate it as:

My aunt mixed tahini with pekmez and put it onto a small plate.

Because koymak often takes a destination in the dative case.

• tabak = plate
• tabağa = to/onto a plate

So:

• küçük bir tabak = a small plate
• küçük bir tabağa = onto a small plate

Since the action is putting something somewhere, Turkish marks the destination with -a / -e.

Examples:

• Masaya koydu. = She put it on the table.
• Dolaba koydu. = He put it in the cupboard.
• Tabağa koydu. = She put it onto the plate.

This is a common sound change in Turkish.

When some words ending in p, ç, t, k take a vowel-initial suffix, the final consonant often softens:

• p → b
• ç → c
• t → d
• k → ğ (or sometimes g)

So:

• tabak
  • -a → tabağa
• kitap
  • -ı → kitabı
• ağaç
  • -ı → ağacı
• kanat
  • -ı → kanadı

This is very normal and something learners see all the time.

Here bir means a/an.

So:

• küçük bir tabağa = onto a small plate

Turkish bir can be:

1. the number one
2. the indefinite article a/an

In this sentence, it works like a.

Without bir, the phrase could sound more general or less explicitly indefinite. Using bir is very natural here.

Koydu is in the definite past tense (also called the -DI past).

Breakdown:

• koy- = put
• -du = past tense

So koydu means:

• she put
• he put
• it put
  depending on context

In this sentence, the subject is teyzem, so it means my aunt put.

Turkish does not mark gender in the verb, so koydu itself does not mean specifically she or he. The context tells you.

Because Turkish often leaves out pronouns when they are not necessary.

Here, the subject is already stated:

• Teyzem = my aunt

So adding o (she/he/it) would be unnecessary.

Turkish commonly omits subject pronouns because:

1. the subject may already be named
2. the verb ending often helps identify the person

So Teyzem ... koydu is perfectly complete and natural.

No, Turkish word order is flexible, but this version is very natural.

The sentence is:

Teyzem tahinle pekmezi karıştırıp küçük bir tabağa koydu.

A rough structure is:

• Teyzem = subject
• tahinle = with tahini
• pekmezi = object
• karıştırıp = after mixing / and mixed
• küçük bir tabağa = onto a small plate
• koydu = put

Turkish often puts the main verb at the end. That is the most important fixed tendency here.

You could rearrange parts for emphasis, but the original order sounds smooth and neutral.

Sometimes, yes, depending on context.

For example:

• Annemle babam geldi. = My mother and father came.

But in your sentence, tahinle clearly means with tahini, not and tahini, because it is used with karıştırmak (to mix).

So:

• tahinle pekmezi karıştırdı = mixed the pekmez with tahini

If you wanted a more symmetrical the tahini and the pekmez, you might say:

• tahini ve pekmezi karıştırdı

That version presents both as direct objects.

A fairly literal breakdown is:

• Teyzem = my aunt
• tahinle = with tahini
• pekmezi = the pekmez
• karıştırıp = having mixed / and mixed
• küçük bir tabağa = onto a small plate
• koydu = put

So very literally:

My aunt, having mixed the pekmez with tahini, put it onto a small plate.

More natural English:

My aunt mixed tahini with pekmez and put it onto a small plate.