Learn English – I recommend or I’m recomending you something

• Are you wanting - indicates a lack of something
• Do you want - indicates a desire for something

Often people desire what they lack, and in the context of this sentence, these phrases mean the same thing.

However, there are other contexts where lacking something doesn't imply it is desired.

Happy to be ignorant, his knowledge was left wanting.

Is a sentence where the lack of knowledge and the desire of knowledge are not aligned.

Neither sentence is formed idiomatically, but (if rephrased) either tense is fine.

I don't like it when you are sticking out your tongue.

This means you don't like it when I am in engaged in the activity of sticking out my tongue. For instance, possibly it makes my face look strange.

I don't like it when you stick out your tongue.

This means you don't like it when I do stick out my tongue. It's not talking about the process as I'm in the middle of it necessarily, just the overall action itself. For instance, you might think it's rude.