ganjanghago sikchoreul gati neoheumyeon deo masisseoyo.

Here, 하고 means and.

So:

• 간장하고 식초를 = soy sauce and vinegar

In this sentence, 하고 connects two nouns: 간장 and 식초.

Be careful: 하고 can also be the verb form meaning do/doing in other sentences, but here it is not a verb. It is just a connector meaning and.

In 간장하고 식초를, the whole phrase 간장하고 식초 works together as one object, so the object marker 를 is attached only to the last noun.

So this structure works like:

• [간장하고 식초]를 넣으면
• if you add [soy sauce and vinegar]

This is very normal in Korean. The particle on the last item can apply to the whole list.

Yes. Korean has several ways to say and between nouns.

For example:

• 간장과 식초를 같이 넣으면 더 맛있어요.
• 간장이랑 식초를 같이 넣으면 더 맛있어요.
• 간장하고 식초를 같이 넣으면 더 맛있어요.

These all mean basically the same thing.

General 느낌:

• 과/와: a bit more formal or written
• 하고: common and natural in speech
• (이)랑: very conversational

Here, 같이 means together.

So 간장하고 식초를 같이 넣으면 means:

• if you add soy sauce and vinegar together
• or if you put them in together

It emphasizes that the two ingredients are added together, not separately.

넣으면 comes from the verb 넣다, which means to put in, to add, or to insert.

Breakdown:

• 넣다 = to put in / add
• 넣으면 = if you put in / if you add

The ending -(으)면 makes an if/when clause.

So:

• 넣으면 = if you add it
• 간장하고 식초를 같이 넣으면 = if you add soy sauce and vinegar together

It can mean either if or when, depending on context.

In this sentence, English most naturally uses if:

• If you add soy sauce and vinegar together, it tastes better.

But Korean -(으)면 is often broader than English if. It can express a general condition, like:

• when you do this, this happens
• if you do this, this happens

So in context, it can feel like a general cooking tip.

The subject is omitted because it is understood from context.

Korean often leaves out subjects when they are obvious. Here, the implied subject is something like:

• the food
• the dish
• the sauce
• it

So the full idea is:

• If you add soy sauce and vinegar together, (the food) tastes better.

English usually needs something explicit like it, but Korean often does not.

더 맛있어요 is the most natural way to say it tastes better or it is more delicious.

• 더 = more
• 맛있어요 = is delicious / tastes good

So:

• 더 맛있어요 = it’s tastier / it tastes better

You could sometimes use 맛있어져요 to mean becomes tastier, but in a simple cooking tip, 더 맛있어요 sounds more natural and direct.

맛있어요 is in the polite informal style, often called 해요체.

It is very common in everyday Korean and works well in most normal conversations.

Compare:

• 맛있어 = casual
• 맛있어요 = polite
• 맛있습니다 = formal

So this sentence is polite but not stiff.

Yes. 간장 means soy sauce.

And:

• 식초 = vinegar

So the sentence is talking about adding those two ingredients.

Yes, very much so.

Because Korean often omits the subject and uses -(으)면 for general conditions, this sentence can sound like a general tip:

• If you add soy sauce and vinegar together, it tastes better.
• It tastes better when you add soy sauce and vinegar together.

So it can describe a general rule, not just one single event.

Yes. 같이 can sometimes mean together or with, depending on context.

For example:

• 친구하고 같이 가요. = I go with my friend.
• 같이 먹어요. = Let’s eat together.

In your sentence, though, 같이 clearly means together, because it refers to adding the two ingredients at the same time.

A few natural translations are:

• If you add soy sauce and vinegar together, it tastes better.
• It tastes better if you add soy sauce and vinegar together.
• Adding soy sauce and vinegar together makes it taste better.

All of these capture the same idea. The Korean sentence is simple and natural, and the exact English wording can vary depending on style.