“Patatas con ajo” was a typical side dish I had with a beef steak when I was a kid. I remember that acid/strong flavour of the potatoes. I have tried a couple of time lately and I couldn’t find the flavour. So I check a couple of videos, and this one gave me the clue, vinager! And then I realised that very likely in each household, this recipe has a different name like “patatas a la vinagreta”.
In my case, the potatoes are fried with much less olive oil so they dont get that crispy. Once they are cooked, removed from the pan, and put chopped garlic, parsly and vinager (I used white wine one). Cooked for 30 sec and then add again the potatoes. Be sure everything gets mixed. Then remove from the heat.
I found that childhood taste! And the day after, they were even better!