Så fort kjøttdeigen er brun, krydrer hun den og sier at tacoen nesten er klar.

Here så fort means as soon as.

It can also literally mean so fast, but in this sentence it introduces a time clause:

• Så fort kjøttdeigen er brun = As soon as the ground meat is brown

A very close synonym is så snart.

Norwegian makes compounds very freely, much more often than English.

So:

• kjøtt = meat
• deig = dough/paste/mix

Together, kjøttdeig means minced meat / ground meat.

Then -en is added to make it definite:

• kjøttdeig = ground meat
• kjøttdeigen = the ground meat

Because brun agrees with the grammatical gender and number of the noun it describes.

Here, kjøttdeigen is a singular common gender noun, so the adjective form is:

• brun = brown

Compare:

• en bil er brun = a car is brown
• et hus er brunt = a house is brown
• bilene er brune = the cars are brown

So kjøttdeigen er brun is the correct agreement.

Both can make sense, but they mean slightly different things.

• er brun = is brown
• blir brun = becomes brown

In cooking instructions, er brun often means that the meat has reached the brown state and is now ready for the next step.

So:

• Så fort kjøttdeigen er brun = As soon as the meat is brown
• Så fort kjøttdeigen blir brun would focus more on the change itself

In this sentence, er brun sounds very natural.

This is because Norwegian follows the V2 rule in main clauses: the finite verb usually comes in the second position.

The sentence begins with a fronted time clause:

• Så fort kjøttdeigen er brun

After that, the main clause starts, and the finite verb must come before the subject:

• krydrer hun den

So the pattern is:

• [time clause], [verb] [subject] ...

Compare:

• Hun krydrer den.
• Så fort kjøttdeigen er brun, krydrer hun den.

This inversion is very common in Norwegian.

Yes. They are closely related.

• krydder = spice / seasoning
• å krydre = to season / to add spices
• krydrer = seasons / is seasoning

So:

• hun krydrer den = she seasons it

This is a useful pair to remember because the noun and verb are very similar.

Den refers back to kjøttdeigen.

Since kjøttdeigen is a singular common-gender noun, the pronoun is:

• den = it

So:

• krydrer hun den = she seasons it

If the noun were neuter, Norwegian would normally use det instead.

Tacoen is the definite form:

• taco = taco
• tacoen = the taco

In context, Norwegian often uses the definite form where English might say something more general, like:

• the taco
• the taco meal
• the tacos

In everyday Norwegian, tacoen can refer to the taco dish or taco dinner as a whole, not necessarily just one individual taco shell.

Because at means that and introduces a subordinate clause.

• sier = says
• sier at ... = says that ...

So:

• hun sier at tacoen nesten er klar = she says that the taco is almost ready

In English, that is often optional. In Norwegian, at is very commonly used in this kind of sentence.

Because after at, Norwegian uses subordinate clause word order.

In a main clause, you would normally say:

• Tacoen er nesten klar.

But after at, adverbs like nesten often come before the finite verb:

• at tacoen nesten er klar

So this is a useful contrast:

• Main clause: Tacoen er nesten klar
• Subordinate clause: at tacoen nesten er klar

That difference in word order is something many English speakers need time to get used to.

Nesten means almost.

So:

• tacoen nesten er klar = the taco is almost ready

It tells you the food is not completely ready yet, but very close.

Norwegian often uses the present tense in:

• instructions
• descriptions of a process
• storytelling
• summaries of what someone says or does

So even though this could describe a sequence of actions, the present tense sounds natural:

• er
• krydrer
• sier
• er

English can do this too in certain styles, such as recipe instructions or vivid narration.

Yes, but the meaning changes slightly.

• så fort = as soon as
• så snart = as soon as
• når = when

So:

• Så fort kjøttdeigen er brun ... = strongly emphasizes immediately after
• Så snart kjøttdeigen er brun ... = very similar, often slightly more formal or neutral
• Når kjøttdeigen er brun ... = when the meat is brown, less focused on immediacy

In this sentence, så fort works very well because it describes the next step in a cooking process.