Onions have a savory, slightly sweet flavor that adds depth and complexity to vegetarian dishes, enhancing everything from soups and stews to stir-fries and salads.
Quick Finds
Types of Onions
- Red Onions
- Mild, slightly sweet flavor
- Ideal for raw dishes like salads, sandwiches, and salsas
- Adds color and crunch
- Yellow Onions
- Most common and versatile
- Flavor becomes sweeter and milder when cooked
- Best for soups, stews, and caramelizing
- White Onions
- Sharper and more pungent than yellow onions
- Crisp texture, used for raw dishes, Mexican food, and salsas
- Often used in recipes that need a stronger onion flavor
How to Shop for Onions
- Look for Firmness: Choose onions that feel heavy for their size and are firm to the touch. Avoid soft or spongy spots.
- Check the Skin: The skin should be dry, papery, and intact. No signs of moisture or sprouting.
- Color & Size: Choose onions based on the recipe, as color impacts flavor. Size can vary, but medium-sized onions are versatile.
- Smell: Onions should have a fresh, slightly sweet scent. Avoid onions with a strong, musty odor.
How to Store Onions for Maximum Freshness
- Keep in a Cool, Dry Place: Store onions in a well-ventilated area at room temperature, away from sunlight.
- Use a Mesh Bag or Basket: Allow air circulation to prevent mold growth.
- Avoid Storing with Potatoes: Potatoes release moisture, which can cause onions to spoil faster.
- Do Not Refrigerate (Unpeeled): Refrigeration can alter their texture and flavor.
How Long Will Onions Keep Fresh?
- Unpeeled, Whole Onions: Up to 1-2 months when stored in a cool, dry place.
- Peeled or Cut Onions: Store in the refrigerator in an airtight container for up to 7 days.
How Long Will Cooked Onions Keep?
- In the Refrigerator: Cooked onions can be stored for up to 3-5 days in an airtight container.
- Freezing Cooked Onions: Can be frozen for up to 3 months. Freeze in portions for easy use.
How to Prep Onions for Cooking
- Peeling: Slice off the top (root end) and cut the onion in half. Peel off the outer skin.
- Slicing: Cut along the length of the onion for long slices or across for small pieces.
- Dicing: Slice the onion horizontally and vertically before cutting into small cubes.
- Chopping (for larger pieces): Cut the onion in half, then slice into wedges.
Ways to Cook Onions
Sautéing
- Heat oil or butter in a pan over medium heat.
- Add sliced onions and cook, stirring occasionally, for 5-10 minutes until soft and golden brown.
Caramelizing
- Cook onions slowly over low heat with oil or butter for 30-45 minutes, stirring occasionally.
- This process turns onions sweet and rich, perfect for topping burgers or adding to sauces.
Roasting
- Cut onions into wedges, toss with olive oil, salt, and pepper.
- Roast at 400°F (200°C) for 20-25 minutes, turning halfway through until tender and browned.
Grilling
- Slice onions into thick rings or wedges, drizzle with oil, and season.
- Grill over medium heat for 8-10 minutes, turning until tender and slightly charred.
Pickling
- Slice onions and submerge them in a mixture of vinegar, sugar, and spices.
- Let sit for 30 minutes to 1 hour for a quick pickle, or refrigerate for up to 1 week.
Fried
- Slice thin, coat in flour, and deep-fry or pan-fry until golden and crispy.
- Perfect for onion rings or crispy toppings.



