Babyen sidder i højstolen med en hagesmæk og spiser varm grød.

Because Danish often adds the definite article to the end of the noun.

• en baby = a baby
• babyen = the baby

So Babyen sidder ... means The baby is sitting ...

This is very common in Danish:

• en stol → stolen = the chair
• en hagesmæk → hagesmækken = the bib

In Danish, i is often used where English might use in or sometimes even on, depending on the object and the Danish way of viewing the situation.

• i højstolen = literally in the high chair

Danish treats many seated situations as being in something:

• sidde i bilen = sit in the car
• sidde i stolen = sit in the chair

Even though English often says on the chair, Danish commonly uses i with chairs people sit in.

Højstolen means the high chair.

It is made from:

• høj = high
• stol = chair
• -en = the

So:

• en højstol = a high chair
• højstolen = the high chair

Compound nouns like this are extremely common in Danish.

Yes. In this sentence, med en hagesmæk means with a bib, and in natural English that usually means wearing a bib.

Breakdown:

• med = with
• en hagesmæk = a bib

So the phrase describes the baby as having a bib on while eating.

Hagesmæk is the Danish word for bib.

It is a compound noun:

• hage = chin
• smæk = something like slap/flap/smack

You do not need to translate it literally when speaking. Just learn en hagesmæk = a bib.

Because Danish does not usually use a separate is to form the present progressive the way English does.

• spiser can mean eats or is eating
• sidder can mean sits or is sitting

So:

• Babyen sidder ... og spiser ... = The baby is sitting ... and eating ...

Danish simple present often covers both the general present and the ongoing present, depending on context.

Because Danish can link two actions with og = and.

Here the baby is doing two things at once:

• sidder = is sitting
• spiser = is eating

So the structure is very straightforward:

• Babyen sidder ... og spiser ...
• The baby is sitting ... and eating ...

Because grød is a common-gender noun, and the adjective agrees with it in the indefinite singular.

• en grød (common gender, though in practice often used without en in some contexts)
• varm grød = warm porridge

Basic pattern:

• common gender singular indefinite: varm
• neuter singular indefinite: varmt
• plural/definite: often varme

Examples:

• en varm suppe = a warm soup
• et varmt måltid = a warm meal
• den varme suppe = the warm soup

So varm grød is the correct form here.

Because food substances and mass nouns often appear without an article in Danish, just as in English.

• spiser grød = eats porridge
• drikker vand = drinks water

When you are talking about some amount of a substance in a general way, no article is often needed.

If you wanted to be more specific, you could use one:

• en grød can exist in certain contexts, but here grød as a mass noun is the natural choice.

Grød usually means porridge or cereal-like mush, depending on context.

In a sentence about a baby, varm grød most naturally means warm porridge or warm baby cereal.

Danish uses grød for several kinds of soft cooked foods, so the exact English word can depend on context.

Yes, this is standard Danish main-clause word order.

Structure:

• Babyen = subject
• sidder = verb
• i højstolen = place
• med en hagesmæk = accompanying detail
• og spiser varm grød = second action

So it follows the usual pattern of subject + verb + other information.

Not naturally. In context, it clearly describes the baby.

The sentence means:

• The baby is in the high chair,
• wearing/with a bib,
• and eating warm porridge.

Grammatically, Danish can sometimes leave such details a bit flexible, but real-world meaning makes it clear that the bib belongs to the baby, not to the porridge.

A very literal version would be:

The baby sits in the high chair with a bib and eats warm porridge.

But natural English is more likely to say:

The baby is sitting in the high chair with a bib on and eating warm porridge.

This is a good example of how Danish simple present often corresponds to English is doing.

A few useful notes:

• babyen: roughly BAY-by-en
• højstolen: the høj part has a vowel sound somewhat like the oy in boy, but not exactly
• hagesmæk: hage is fairly easy, but smæk has the Danish æ, a front vowel somewhat like the vowel in cat, though not identical
• grød: this is one of the trickier ones; the vowel is not like a normal English vowel, and the d is soft

If pronunciation is important for you, grød and højstolen are especially worth listening to from a native speaker.

Yes, definitely. It is a very useful pattern:

[Subject] + [verb] + [place/detail] + og + [second verb] + [object]

Examples:

• Drengen sidder på gulvet og leger.
  The boy is sitting on the floor and playing.

• Kvinden står i køkkenet og laver mad.
  The woman is standing in the kitchen and cooking.

• Barnet sidder ved bordet og drikker mælk.
  The child is sitting at the table and drinking milk.

So this sentence is a great model for everyday Danish.