El sabor ahumado me gusta.

Because gustar works differently from to like in English.

In Spanish, gustar literally works more like to be pleasing to. So:

• Me gusta el sabor ahumado = The smoky flavor is pleasing to me
• not I like the smoky flavor word-for-word

That is why me means to me, and gusta agrees with the thing being liked, not with the person.

So:

• Me gusta = I like it / It pleases me
• Me gustan = I like them / They please me

You would only use yo for emphasis, and even then you would still say:

• A mí me gusta el sabor ahumado.

Because the subject of the verb is el sabor ahumado, which is singular.

With gustar, the verb agrees with the thing that is pleasing:

• Me gusta el sabor ahumado. → one flavor, so gusta
• Me gustan los sabores ahumados. → multiple flavors, so gustan

A good shortcut is:

• singular thing liked → gusta
• plural things liked → gustan

Me is an indirect object pronoun meaning to me.

So in this sentence:

• El sabor ahumado me gusta.

the structure is basically:

• El sabor ahumado = the smoky flavor
• me = to me
• gusta = is pleasing

So the full sense is The smoky flavor is pleasing to me.

Other forms are:

• te gusta = you like
• le gusta = he/she likes, or you like (formal)
• nos gusta = we like
• os gusta = you all like (Spain)
• les gusta = they like, or you all like (Latin America / formal plural)

Because sabor is a noun, and in Spanish common nouns usually need an article when speaking in a general or definite way.

Here, el sabor ahumado means the smoky flavor or smoky flavor as a concept.

Spanish often uses the definite article where English might not:

• Me gusta el chocolate.
• Prefiero el café.
• No me gusta la comida fría.

So el here is completely natural.

Because most descriptive adjectives in Spanish come after the noun.

So:

• sabor ahumado = smoky flavor

This is the normal order:

• noun + adjective

Examples:

• vino tinto = red wine
• pan integral = wholemeal bread
• queso curado = aged cheese

You can sometimes move adjectives before the noun, but that usually changes the tone or meaning. In this sentence, sabor ahumado is the normal and expected order.

Ahumado comes from the verb ahumar, which means to smoke in the culinary sense, or to cure/smoke with smoke.

So ahumado literally means:

• smoked
• smoky, depending on context

In sabor ahumado, it is best understood as:

• smoky flavor or
• smoked flavor

You may also see it in phrases like:

• salmón ahumado = smoked salmon
• queso ahumado = smoked cheese

Yes, and in fact that is the most common word order.

Both are possible:

• Me gusta el sabor ahumado.
• El sabor ahumado me gusta.

The difference is emphasis.

• Me gusta el sabor ahumado is the neutral, standard order.
• El sabor ahumado me gusta puts more focus on el sabor ahumado, as if contrasting it with other flavors.

For example:

• El sabor ahumado me gusta, pero el picante no.

So the sentence you were given is correct, but it sounds slightly more marked or emphatic.

Spanish word order is more flexible than English word order.

With gustar, it is very common to put the liked thing after the verb:

• Me gusta el sabor ahumado.

But you can also move it to the front for emphasis, contrast, or style:

• El sabor ahumado me gusta.

This does not change the core meaning. It mainly changes what sounds highlighted.

English is more rigid here:

• I like the smoky flavor is normal
• The smoky flavor, I like is possible, but more marked

Spanish allows this kind of rearrangement more naturally.

Yes.

That is one of the biggest grammar points with gustar. The thing that is liked is actually the grammatical subject.

So in:

• El sabor ahumado me gusta.

the subject is:

• el sabor ahumado

And the person who experiences the liking is represented by:

• me

That is why the verb is singular:

• el sabor ahumado ... gusta

If the subject were plural, the verb would change:

• Los sabores ahumados me gustan.

Usually no, not in normal standard Spanish.

You would normally say:

• Me gusta el sabor ahumado.

Leaving out the article sounds incomplete or unnatural in most contexts.

Spanish often requires articles more than English does, especially with general categories, abstract ideas, and nouns used in a broad sense.

So a learner should generally keep el here.

Yes, it is natural, especially if you want to talk about flavor in a general or slightly descriptive way.

That said, in everyday conversation people might also say:

• Me gusta el sabor ahumado.
• Me gustan los sabores ahumados.
• Me gusta el toque ahumado.
• Me encanta el sabor ahumado.

A very common Spain-style phrasing in food contexts is:

• Tiene un toque ahumado. = It has a smoky note/touch.

So your sentence is correct and natural, but depending on context, native speakers might choose a slightly different expression.

Yes.

A mí me gusta el sabor ahumado is perfectly correct. The a mí is optional and adds emphasis or contrast.

Compare:

• Me gusta el sabor ahumado. → neutral
• A mí me gusta el sabor ahumado. → I like the smoky flavor
• A mí me gusta el sabor ahumado, pero a mi hermano no. → contrast

The short pronoun me is normally required, while a mí is added only when needed for clarity or emphasis.

Only if the noun were feminine.

Ahumado is an adjective, so it must agree in gender and number with the noun it describes.

Here:

• sabor is masculine singular
• so the adjective is ahumado

Examples:

• el sabor ahumado → masculine singular
• la nota ahumada → feminine singular
• los sabores ahumados → masculine plural
• las notas ahumadas → feminine plural

So ahumado is correct because it matches sabor.