It sounds like you’re referring to a simple yet delicious way to cook onions, perhaps using a method inspired by traditional Chinese cooking. Cooking onions with a lid can help them caramelize and soften beautifully, unlocking a rich, sweet flavor that’s incredibly versatile in dishes. Here’s a straightforward recipe to prepare caramelized onions using a lid to trap the steam and enhance the cooking process.

Simple Delicious Caramelized Onions

Ingredients:

• 2 large onions (yellow or red)

• 2 tablespoons of olive oil or butter

• Salt, to taste

• Optional: a splash of balsamic vinegar or soy sauce for added flavor

Equipment:

• Skillet with a lid

Instructions:

1. Prepare the Onions:

   • Peel the onions and slice them thinly. The thinner the slices, the faster they will cook and caramelize.

2. Heat the Oil:

   • Place a skillet over medium heat and add the olive oil or butter. Allow it to heat up until it’s shimmering but not smoking.

3. Cook the Onions:

   • Add the sliced onions to the skillet, spreading them out evenly.

   • Sprinkle a little salt over the onions to help draw out moisture and enhance their sweetness.

   • Stir the onions gently to coat them in the oil or butter.

4. Cover and Caramelize:

   • Reduce the heat to low and cover the skillet with a lid. This will trap steam and help the onions cook more evenly, preventing them from burning.

   • Let the onions cook for about 20-30 minutes, checking occasionally. If they start to stick, you can add a small splash of water or more oil to the pan.

5. Uncover and Finish:

   • Remove the lid after about 20 minutes, and increase the heat to medium-low. If desired, add a splash of balsamic vinegar or soy sauce for extra flavor. This step will help the onions turn a deep golden brown and enhance their natural sweetness.

   • Continue to cook the onions, stirring frequently, until they are completely caramelized and richly browned.

6. Serve:

   • Use these caramelized onions as a topping for burgers, steaks, or grilled cheese sandwiches. They also make a great addition to pizzas, pasta dishes, or even as a side to complement main courses.

Tips:

• Patience is Key: Caramelizing onions is a slow process that can’t be rushed. The longer you cook them, the sweeter and more flavorful they’ll become.

• Batch Cooking: Caramelized onions keep well in the refrigerator and can be reheated, so consider making a large batch to use throughout the week.

This simple technique, involving just onions and a lid, is a testament to how minimal ingredients can produce deeply flavorful results. This method not only enhances the taste of the onions but also transforms them into a versatile component that can elevate a variety of dishes.