Zum Schluss fragt der Kellner, ob wir noch Zimt auf den warmen Pfirsich wollen oder lieber Sahne.

Zum Schluss means at the end or finally.

In a main clause, German puts the finite verb in the second position. So when Zum Schluss comes first, the verb fragt must come next:

• Zum Schluss fragt der Kellner ...

This is why it is fragt der Kellner, not der Kellner fragt here.

Because German follows the V2 rule in main clauses: the conjugated verb must be in the second position.

If the sentence began with the subject, you could say:

• Der Kellner fragt zum Schluss, ...

But since Zum Schluss has been moved to the front, the verb stays second:

• Zum Schluss fragt der Kellner, ...

So der Kellner comes after the verb.

Ob means whether or if in the sense of introducing an indirect yes/no question.

So:

• Der Kellner fragt, ob wir ... wollen.
• The waiter asks whether we want ...

This is different from wenn, which usually means if/when in conditional or time clauses.

Because ob introduces a subordinate clause, and in German subordinate clauses the conjugated verb normally goes to the end.

So:

• ob wir noch Zimt auf den warmen Pfirsich wollen

The normal main-clause order would be something like:

• Wir wollen noch Zimt auf den warmen Pfirsich.

But after ob, the verb moves to the end.

Here noch means something like more, additional, or still depending on context.

In this sentence, it suggests an extra topping or addition:

• ob wir noch Zimt ... wollen
• whether we want some cinnamon as well / any more cinnamon

It often adds the idea of something extra.

German often uses mass nouns like Zimt without an article when talking about the substance in a general sense.

So:

• noch Zimt
• some more cinnamon

This is similar to English, where you would usually say cinnamon, not a cinnamon.

You could add an article in some contexts, but here bare Zimt is the natural choice.

Auf can take either the accusative or the dative, depending on meaning.

Here it means putting something onto the peach as a topping, so German treats this as direction/placement onto something, and uses the accusative:

• auf den warmen Pfirsich

Also, Pfirsich is masculine, so the accusative singular article is den.

• nominative: der warme Pfirsich
• accusative: den warmen Pfirsich

Because it follows the article den, which marks masculine accusative singular.

The phrase is:

• den warmen Pfirsich

After den, the adjective takes -en in this pattern.

So the full noun phrase is declined like this:

• nominative: der warme Pfirsich
• accusative: den warmen Pfirsich

That is why you see warmen here.

Lieber here means rather or preferably.

The phrase:

• oder lieber Sahne

means:

• or rather cream
• or would you prefer cream instead

German often places lieber directly before the thing being preferred. It sounds natural that way.

No. Here lieber is being used more like an adverb/particle of preference, meaning rather.

Compare:

• Ich trinke lieber Tee. = I prefer tea / I’d rather drink tea.

In your sentence:

• ... oder lieber Sahne
• ... or rather cream

So it is not describing Sahne as a noun with an adjective ending; it is expressing preference.

Because German, like English, often leaves out words that are easy to understand from context.

The full version would be something like:

• ..., ob wir noch Zimt auf den warmen Pfirsich wollen oder lieber Sahne auf den warmen Pfirsich wollen.

But that is unnecessarily repetitive. So German shortens it to:

• ..., ob wir noch Zimt auf den warmen Pfirsich wollen oder lieber Sahne.

English does the same:

• Do you want cinnamon on it, or rather cream?

In this context, wollen is often best understood politely as want / would like.

Literally, wollen means to want, but in everyday service situations it often sounds natural in English as:

• Do you want ... ?
• Would you like ... ?

So even if the German uses wollen, the most natural English translation may be would like.

Because the sentence is talking about the dessert/item being served, not necessarily one peach per person in a grammatical sense.

German can use the singular if the dessert is understood as a dish:

• den warmen Pfirsich

It may refer to the served item as a whole, or to each person’s portion in a general way. This is normal and does not have to match wir.

Yes. Sahne usually means cream, and in dessert contexts it often suggests whipped cream unless context says otherwise.

So in this sentence, many learners would understand:

• Sahne = cream / whipped cream

The exact English wording depends on context, but the German itself is perfectly natural.

The sentence has two main parts:

1. Main clause

   • Zum Schluss fragt der Kellner
   • Finally, the waiter asks

2. Subordinate clause introduced by ob

   • ob wir noch Zimt auf den warmen Pfirsich wollen oder lieber Sahne
   • whether we want more cinnamon on the warm peach or would rather have cream

So the pattern is:

• [time expression] + [verb] + [subject] + , ob + [subject] + ... + [verb at end]

That is a very common German sentence pattern.