Opskriften siger, at jeg kun skal bruge en skefuld sukker.

Opskriften means the recipe, while opskrift means a recipe or just recipe in a general sense.

Danish usually adds the definite article to the end of the noun:

• en opskrift = a recipe
• opskriften = the recipe

So Opskriften siger ... means The recipe says ...

In standard Danish spelling, a comma is often placed before at when it introduces a subordinate clause.

Here:

• Opskriften siger = main clause
• at jeg kun skal bruge en skefuld sukker = subordinate clause

So the comma helps separate the two parts:

• Opskriften siger, at ...

This is very common in written Danish.

Here at means that.

So:

• Opskriften siger, at ... = The recipe says that ...

It introduces the reported statement, just like English that.

Kun means only.

In this sentence, kun comes before skal:

• jeg kun skal bruge ...

This is a normal Danish word order for adverbs like kun, especially in subordinate clauses.

A rough breakdown is:

• jeg = I
• kun = only
• skal = must / am supposed to
• bruge = use

So the sense is: that I only need to use ...

Skal bruge is very common Danish and often means need to use or am supposed to use.

Word by word:

• skal = shall / must / have to
• bruge = use

But together, in everyday English, it is often best translated as:

• need to use

So:

• jeg skal bruge sukker = I need sugar
• jeg skal bruge en skefuld sukker = I need a spoonful of sugar

In recipe language, this sounds very natural.

Because they do different jobs.

• skal is a modal verb. It adds the idea of necessity, requirement, or what is needed.
• bruge is the main verb meaning use.

So:

• jeg bruger sukker = I use sugar
• jeg skal bruge sukker = I need to use sugar / I will need sugar

This combination is extremely common in Danish.

Because it comes after the modal verb skal.

In Danish, modal verbs such as skal, kan, vil, må are followed by the infinitive without at.

So:

• jeg skal bruge
• jeg kan bruge
• jeg vil bruge

Not:

• jeg skal at bruge

That would be incorrect.

En skefuld means a spoonful.

It is made up of:

• en ske = a spoon
• -fuld = -ful, as in handful, spoonful

So en skefuld sukker means a spoonful of sugar.

In Danish, measure expressions often work directly without af.

So Danish commonly says:

• en skefuld sukker = a spoonful of sugar
• et glas vand = a glass of water
• en kop kaffe = a cup of coffee

English often needs of, but Danish often leaves it out.

You can sometimes use af in other contexts, but here en skefuld sukker is the natural standard phrasing.

Because sukker is being used as an uncountable substance noun, like sugar in English.

Compare:

• en skefuld sukker = a spoonful of sugar
• noget sukker = some sugar

You would not normally say en skefuld et sukker or something similar. The noun names the substance directly.

It is one word: skefuld.

Danish often forms compound nouns as single words. That is very important in Danish spelling.

So:

• ske
  • fuld → skefuld
• opskrift is also a single word
• many Danish nouns combine this way

Writing ske fuld would be wrong here.

Because at introduces a subordinate clause, and subordinate clauses in Danish often have different word order from main clauses.

Main clause:

• Jeg skal kun bruge en skefuld sukker.

Subordinate clause:

• ... at jeg kun skal bruge en skefuld sukker.

A key difference is that adverbs like kun often come before the finite verb in subordinate clauses.

That is why kun appears before skal here.

Yes, but it means something different.

• Jeg skal kun bruge sukker = I only need to use sugar

  • This suggests sugar is the only ingredient or thing needed.

• Jeg skal bruge kun en skefuld sukker is less natural in standard Danish word order.

• Jeg kun skal bruge en skefuld sukker appears here because it is inside a subordinate clause after at.

So kun affects what is being limited, and its position matters.

A simple breakdown is:

• Opskriften = the recipe
• siger = says
• at = that
• jeg = I
• kun = only
• skal = need to / must
• bruge = use
• en skefuld sukker = a spoonful of sugar

So the structure is:

• main clause: Opskriften siger
• subordinate clause: at jeg kun skal bruge en skefuld sukker

This is a very typical Danish sentence pattern.

Yes. Danish uses sige very naturally for written instructions, signs, books, recipes, and similar things.

So:

• Opskriften siger ... = The recipe says ...
• Skiltet siger ... = The sign says ...
• Bogen siger ... = The book says ...

This works very much like English.