Ingredient Guide
What onion is and how it works in a recipe
Onion is a layered bulb that builds the flavor base of countless dishes. Raw, it is crisp and sharp; sauteed slowly, it softens and sweetens; roasted or caramelized, it becomes jammy.
How to choose onion
Choose onions that feel firm and heavy with dry, papery skins and no soft spots or sprouting. Yellow onions are the all-purpose pick, white are sharper and crisp, and red are often kept for raw use.
Storing onion
Store whole onions in a cool, dark, dry place with air circulation, and away from potatoes. Cut onions should be wrapped or boxed and refrigerated and used within a few days.
Prep tips for onion
Cut off the top, halve through the root, peel, and slice with the root end intact to keep the layers together. Uniform pieces cook evenly. Chilling the onion first can reduce tearing, and a sharp knife helps more than any trick.
Substitutes for onion
If you are out of onion, these are the most practical swaps. None is identical, so taste and adjust as you cook.
Shallot: milder and more delicate; use in similar amounts.
Leek (white and light-green parts): soft, sweet, and good in cooked dishes.
Scallion whites: for a lighter onion note in quick dishes.
How onion is used across our recipes
Onion shows up in 32 published RecipePool recipes. Total times run from 15 minutes to 3 hr 50 min, and a typical recipe lands around 1 hr. 3 of them are done in 30 minutes or less, and 17 in an hour or less. By difficulty, that breaks down as 16 rated easy, 15 medium, 1 more involved.
Cuisine-wise, onion turns up most in Mediterranean (7), French (6), Asian (4), and Italian (4). By meal type, the recipes lean toward Main Course (26), Soup & Stew (9), Appetizer (2), and Breakfast (2). Diet tags that appear alongside it include Gluten-Free (14), Dairy-Free (12), and Vegetarian (8); check each ingredient list before relying on a tag.
Cooking methods used with onion include Stovetop (29), Oven (8), Baking (3), and One Pot (2). It also appears in recipes for Weeknight Dinner (26), Potluck (11), and Meal Prep (9).
Ingredients that most often share a recipe with onion here are garlic, olive oil, kosher salt, butter, bell pepper, and tomatoes. If you are planning a shopping list or deciding what to cook alongside, those are a natural place to start.
To see onion in action, try Potato and Cheese Pierogi, Borscht, or Stuffed Cabbage Rolls. The full list of recipes follows below.
Recipes to start with
Potato and Cheese Pierogi (1 hr 5 min, medium): Tender pierogi stuffed with mashed potato and farmer cheese, then boiled and finished in butter with sweet onions.
Borscht (1 hr 5 min, easy): A vivid beet borscht with cabbage, carrots, potato, and a broth that tastes earthy, bright, and just a little sweet.
Stuffed Cabbage Rolls (2 hr 10 min, medium): Eastern European comfort classic: cabbage leaves stuffed with seasoned ground beef and rice, simmered in a tangy tomato sauce until tender.
Gumbo (1 hr 35 min, medium): A proper gumbo with a mahogany roux, the holy trinity, smoky sausage, tender chicken, and a broth that tastes long-cooked and serious.
Grilled Octopus (1 hr 45 min, medium): Mediterranean grilled octopus: braised until tender, then charred on the grill with olive oil, lemon, and oregano.
Onion questions
- How should I store onion?
- Store whole onions in a cool, dark, dry place with air circulation, and away from potatoes.
- What can I use instead of onion?
- Shallot is a common swap (milder and more delicate; use in similar amounts). Other options include leek (white and light-green parts) and scallion whites.
- What kinds of recipes use onion?
- On RecipePool, onion appears in 32 recipes, mostly main course, soup & stew, appetizer, with Mediterranean, French, Asian among the common cuisines. Examples include Potato and Cheese Pierogi, Borscht, Stuffed Cabbage Rolls.
- Are there quick recipes with onion?
- 3 of the 32 timed recipes with onion take 30 minutes or less in total, and the shortest takes 15 minutes.
- What goes well with onion?
- Across our recipes, onion is most often paired with garlic, olive oil, kosher salt, butter.
