Después de comer, tomamos un poco de bizcocho con té.

Because after the preposition de, Spanish normally uses the infinitive when the subject is general or understood.

So:

• después de comer = after eating / after lunch
• not después de comemos

This is a very common pattern:

• antes de salir = before leaving
• después de cenar = after dinner / after eating dinner

In this sentence, después de comer works like a time expression.

Yes, very often in Spain it can.

Literally, comer means to eat, so después de comer literally means after eating. But in everyday Spanish, especially in Spain, comer can also refer to the main midday meal, so the phrase often naturally means after lunch.

The exact nuance depends on context.

The comma separates the introductory time phrase from the main clause:

• Después de comer, tomamos un poco de bizcocho con té.

In English, this is similar to writing:

• After eating, we had a little sponge cake with tea.

The comma is very natural here, although in short sentences Spanish punctuation can sometimes be flexible.

Here tomamos means something like we had.

With food and drink, tomar is often used in Spanish to mean:

• to have
• to eat
• to drink

So in this sentence, tomamos un poco de bizcocho con té means they had some cake with tea.

This use is very common in Spain.

It can be either, depending on context.

For -ar verbs, the nosotros form is the same in:

• present: tomamos = we take / we drink / we have
• preterite: tomamos = we took / we drank / we had

So only context tells you which one it is.

In this sentence, if the meaning shown to the learner is past, then tomamos is being understood as we had.

Because Spanish usually omits subject pronouns when they are not needed.

The verb ending -amos already tells you the subject is we.

So:

• tomamos = we have / we had

Adding nosotros is possible, but it usually adds emphasis, contrast, or clarity.

Un poco de means a little or some.

So:

• un poco de bizcocho = a little/some sponge cake
• bizcocho by itself would just name the food in a more general way

Using un poco de makes the quantity more specific and sounds very natural if they only had a small amount.

Because un poco de is a fixed structure meaning a little of or some.

Examples:

• un poco de pan = a little bread
• un poco de agua = a little water
• un poco de bizcocho = a little sponge cake

English learners often want to translate word for word, but in Spanish de is required in this pattern.

In Spain, bizcocho usually refers to a light cake, often similar to sponge cake or a simple homemade cake.

It is not exactly the same as every English word for cake, because food vocabulary varies by country. In Spain:

• bizcocho = usually a simple sponge-style cake
• tarta = often a more decorated cake or tart, especially for celebrations
• pastel = can also mean cake/pastry, but usage varies

So bizcocho is a very natural word here.

For bizcocho, the article is not needed because it comes after un poco de:

• un poco de bizcocho

That structure already expresses the quantity.

For té, Spanish often omits the article when talking about food or drink in a general way:

• con té = with tea

You could sometimes hear con el té if you mean a specific tea already known in the conversation, but con té is perfectly natural here.

Because con means with, and it shows accompaniment.

• bizcocho con té = cake with tea

This sounds like the cake was had together with tea.

If you said y té, it would simply mean and tea, which is possible in some contexts, but con is more natural when one item is accompanying the other.

Yes: té has an accent mark.

The accent helps distinguish it from te, the unstressed object pronoun meaning you.

• té = tea
• te = you

So the accent is important here.

In most of Spain, bizcocho is pronounced approximately:

• beeth-KO-cho

More precisely, the z is pronounced like the th in think in standard Peninsular Spanish:

• biθ-KO-cho

Also:

• ch is like English ch
• the stress is on co

In many parts of Latin America, the z would sound like s instead.

Yes, it could be, but it gives a slightly different feel.

• tomamos un poco de bizcocho con té = we had some sponge cake with tea
• comimos un poco de bizcocho con té = we ate some sponge cake with tea

Using tomar is very common in Spain for food and drink, and it can sound a bit broader and more natural in this kind of social or mealtime context. Comer focuses more specifically on the act of eating.