1. Choosing the Right Type of Onion
There are two main types of onions available in the market: Hue Onion (also known as Cinnamon Onion) and Water Buffalo Onion. Here’s how to choose the best one for pickling.
- Hue Onion: Smaller bulbs, more roots, delicate onion leaves, rounded bulb shape with a distinct waist, and a tail connected to the stem. It has a strong, pungent flavor.
- Water Buffalo Onion: Larger bulbs that are connected to a longer stem without a distinct waist. It is quicker to prepare, but not as crispy and aromatic as the Hue Onion.
For pickling, it is recommended to choose Hue Onion for a crispier and more flavorful result.
Look for onions that are moderately sized, evenly white, fresh and undamaged. Avoid any with scratches, bruises, or signs of decay.
Choosing the right onion
2. The Secret to Delicious Pickled Onions
Soak the onions in water mixed with ash (or substitute with water used for washing rice, water mixed with sour alum, or limewater) for at least 8 hours, preferably overnight. This step helps reduce the pungency of the onion’s juices, resulting in crispier and more flavorful onions that can be stored for longer.
3. Shade-Drying the Onions
Dry the onions in the shade for a day
Before pickling, the onions need to be dried, but not in direct sunlight. Avoid the temptation to speed up the process by sun-drying, as this can scorch the outer layers and cause moisture loss. Instead, aim for a gentle wilting of the onions by drying them in a shaded area.
4. Using Fermented Rice Vinegar for Pickling
Use fermented rice vinegar for pickling
When pickling, always use fermented rice vinegar. Regular rice vinegar will turn the onions yellow over time, affecting their appearance.
5. Avoid Cutting Too Deeply into the Onion Flesh
Don’t cut too deeply into the onion flesh
When trimming the roots, avoid cutting too deeply into the onion flesh. Otherwise, the onions may become waterlogged during pickling. If you’re pickling the onions with their leaves intact, trim only the roots and a small portion of the leaves, leaving the leaves longer than you would for other pickling methods.
With these tips, you can now make delicious and crispy pickled onions for your family this Tet holiday.
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