The Grandmother Trick for Fast, Perfect Caramelized Onions

Home cooks know that slowly fried onions can give any savory dish deeper flavor, but getting them fully caramelized usually takes patience and close attention. The article says experienced cooks have long used a shortcut: baking soda.

The science is simple. Baking soda is alkaline, so adding a small pinch to the pan raises the onions’ pH and breaks down their cell walls faster. That releases moisture and natural sugars, helping the onions turn brown, sweet, and soft in much less time than usual.

The key is restraint. For a pan with 2 to 3 onions, the article recommends only a tiny pinch, about 1/8 teaspoon. Too much can ruin the texture, leaving the onions soapy, yellow, and with a metallic aftertaste. The suggested method is to sauté 2 to 3 large chopped onions in oil or butter over medium heat for about 7 minutes, until translucent, then add the baking soda, stir well, and lower the heat to medium-low. Within minutes, the onions should become amber and fragrant.

The same ingredient can also speed up other kitchen tasks. A little baking soda in boiling water can soften chickpeas or beans in half the time, and a 15 to 20 minute soak of 300 grams of sliced beef or chicken in 1/4 teaspoon baking soda plus a little water can make meat more tender. The meat should then be rinsed well in cold water and dried before stir-frying.