Hoje fiz uma sobremesa simples com framboesas.

Fiz is the 1st person singular of the pretérito perfeito simples of fazer (to do / to make).

In this sentence, it means I made and refers to a completed action in the past:

• Hoje fiz... = Today I made...

Compare:

• faço = I do / I make (present)
• fazia = I used to do / I was doing (imperfect, more ongoing or habitual in the past)
• fiz = I did / I made (completed past action)

So fiz is the natural choice here because the dessert was made at some point earlier today, and that action is finished.

Portuguese often drops the subject pronoun when the verb already makes the subject clear.

So:

• Hoje fiz uma sobremesa...
  already clearly means
• Today I made a dessert...

The ending of fiz tells you it is I.

You could say:

• Hoje eu fiz uma sobremesa simples com framboesas.

But eu is usually unnecessary unless you want emphasis, contrast, or extra clarity.

Hoje means today, and putting it at the start sets the time right away.

This is very common in Portuguese:

• Hoje fiz uma sobremesa simples com framboesas.

But other word orders are also possible, for example:

• Fiz hoje uma sobremesa simples com framboesas.
• Eu fiz uma sobremesa simples com framboesas hoje.

Starting with Hoje sounds very natural because it gives the context first.

Sobremesa usually means dessert in European Portuguese.

So:

• uma sobremesa simples = a simple dessert

Be careful not to confuse it with the literal parts:

• sobre = on / over
• mesa = table

Even though the word looks like it might literally mean something like over-table, in real usage it simply means dessert.

Uma is the indefinite article, meaning a / an.

So:

• uma sobremesa = a dessert

Portuguese often uses the article where English does, so this matches English quite closely here.

If you said just fiz sobremesa, that could sometimes be understood in context, but fiz uma sobremesa is the normal, straightforward way to say I made a dessert.

In Portuguese, adjectives often come after the noun.

So:

• uma sobremesa simples = a simple dessert

This is one of the most common adjective positions in Portuguese.

Sometimes adjectives can go before the noun, but that can change the tone or emphasis. Here, sobremesa simples is the standard, neutral order.

Simples is one of those adjectives that has the same form in the masculine and feminine singular:

• um prato simples = a simple dish
• uma sobremesa simples = a simple dessert

Its plural is:

• simples as well

So you get:

• uma sobremesa simples
• duas sobremesas simples

The article and noun show number and gender more clearly than the adjective does here.

Com means with, so it suggests the dessert was made with raspberries or included raspberries as an ingredient or accompaniment.

• uma sobremesa simples com framboesas = a simple dessert with raspberries

If you said de framboesas, that would sound more like raspberry dessert or a dessert made of / flavored with raspberries, depending on context.

Both can exist, but com framboesas is a very natural way to say the dessert included raspberries.

Because the idea is that the dessert was made with raspberries, not just one raspberry.

• framboesa = raspberry
• framboesas = raspberries

Using the plural is the normal choice when talking about fruit used in a recipe.

After com, Portuguese often uses a noun without an article when talking generally about ingredients or things included in a dish.

So:

• com framboesas = with raspberries

This sounds natural and general.

You might also hear com as framboesas in a more specific context, but that would mean with the raspberries, referring to particular raspberries already known in the conversation.

Yes, fazer is very common and natural for preparing food, especially in everyday speech.

So:

• fazer uma sobremesa = to make a dessert

This is very similar to English, where make is also common.

Portuguese does have other food-related verbs, such as:

• cozinhar = to cook
• preparar = to prepare

But with desserts, recipes, dishes, cakes, etc., fazer is extremely common and idiomatic.

In European Portuguese, fiz is pronounced roughly like feesh, but shorter and tighter.

A few helpful points:

• fi- sounds close to English fee
• final -z in European Portuguese often sounds like sh at the end of a word

So fiz is approximately:

• feesh

That is only an approximation, but it helps many English speakers.

In European Portuguese, framboesas is pronounced approximately like:

• fram-BWEH-zash

A few things to notice:

• the stress is on -boe-
• oe here sounds roughly like we
• the final -as in European Portuguese often sounds closer to -ash

So the word may sound less like the spelling than an English speaker expects.

Yes. That is correct and natural.

Compare:

• Hoje fiz uma sobremesa simples com framboesas.
  = everyday, very common
• Hoje preparei uma sobremesa simples com framboesas.
  = slightly more formal or a bit more explicitly prepared

Both work well. Fiz is probably the most ordinary and conversational choice.