Du brauchst die Avocado nicht zu schälen; ich mache das schon.

This is a very common German pattern:

brauchen + object + nicht + zu + infinitive

It means do not need to do something.

So:

• Du brauchst die Avocado nicht zu schälen. = You don’t need to peel the avocado.

The main verb brauchst is conjugated for du, and the action itself appears at the end as zu schälen.

Because in this meaning, brauchen is followed by an infinitive construction: zu + infinitive.

Compare:

• Ich brauche eine Avocado.
  = I need an avocado.
  Here brauchen is a normal full verb with a noun.

• Ich brauche die Avocado nicht zu schälen.
  = I don’t need to peel the avocado.
  Here brauchen is used with an infinitive phrase.

In careful standard German, zu is normally expected in this pattern. In colloquial speech, some speakers may omit it, but learners should use nicht zu schälen.

Because nicht is negating the action phrase zu schälen.

So the meaning is:

• You do not need to peel the avocado

not:

• You need not the avocado
• or not the avocado, but something else

German often places nicht right before the part it negates, or before a larger phrase containing what is being negated. Here it naturally negates zu schälen.

If you changed the position, the emphasis could change. For example:

• Du brauchst nicht die Avocado zu schälen.

This could sound more like: It’s not the avocado that needs peeling or you don’t need to peel the avocado specifically.

Avocado is a feminine noun in German: die Avocado.

In this sentence, it is the direct object of schälen, so it is in the accusative case.

For feminine singular nouns, the article is:

• nominative: die
• accusative: die

So the form stays the same here.

Because German infinitives usually go to the end of the clause when they are part of a larger verb structure.

Here the finite verb is:

• brauchst

And the infinitive phrase is:

• zu schälen

So the clause follows the usual German pattern:

• finite verb in second position
• infinitive at the end

That is why you get:

• Du brauchst die Avocado nicht zu schälen.

not:

• Du brauchst zu schälen die Avocado.

Not exactly. Schon often means already, but in this sentence it has a different, very common tone.

• Ich mache das schon.

Here schon means something like:

• I’ll do it
• I’ll take care of it
• don’t worry, I’ve got it

So it adds reassurance.

This use of schon is very common in spoken German. It often softens the sentence and makes it sound more natural and reassuring.

Because das often refers to a whole action or task:

• peeling the avocado
• doing that thing

In German, das is very natural when referring back to an entire idea or activity.

So:

• Ich mache das schon. = I’ll do that / I’ll take care of it.

Using es is less natural here. Das is the more idiomatic choice when you mean that task or that action.

Yes. That also means:

• You don’t have to peel the avocado.

Both are correct, but there is a slight difference in feel:

• Du brauchst die Avocado nicht zu schälen.
  often sounds a bit softer and more conversational

• Du musst die Avocado nicht schälen.
  is also common and straightforward

A useful contrast to remember is:

• nicht müssen = don’t have to
• nicht dürfen = must not / not be allowed to

So:

• Du musst die Avocado nicht schälen. = You don’t have to peel it.
• Du darfst die Avocado nicht schälen. = You must not peel it.

Because du is the informal singular word for you.

So this sentence is something you would say to:

• a friend
• a family member
• a child
• someone you know well

If you wanted the formal version, you would say:

• Sie brauchen die Avocado nicht zu schälen; ich mache das schon.

The semicolon separates two complete clauses that are closely connected:

• Du brauchst die Avocado nicht zu schälen
• ich mache das schon

It is stronger than a comma, but weaker than a full stop.

So this punctuation suggests:

• one connected thought
• a clear pause between the two parts

A full stop would also be fine:

• Du brauchst die Avocado nicht zu schälen. Ich mache das schon.

That is probably even more common in everyday writing.

No. It should not be understood word for word from English.

It is an idiomatic German expression meaning something like:

• I’ll do it
• I’ll handle it
• leave it to me

So even though schon often means already, the whole expression works more like a reassuring promise than a literal future statement.

That is why a natural English translation is usually not word-for-word here.