How to avoid onion sweetening when sautéing? As you know if you sauté onions they'll start to get sweeter the more they stay in the frying pan.
So is there a trick to avoids this sweetening, maybe keep more of the onion taste?
From The Times of India:

Add a hint of tanginess:
Adding lime juice can to your dish can balance out the sweetness. In case, you don't want too much of tanginess in the dish you can also add vinegar white wine vinegar, red wine vinegar, balsamic vinegar.