Did You Know?
Onions make you cry because cutting them releases allyl sulfoxide, which converts to sulfenic acid that irritates your eyes — chilling onions before cutting reduces this effect.
Overview
· year-round · spices
Onion is one of the world's most fundamental culinary ingredients — pungent when raw, sweet and complex when caramelized, forming the flavor base of countless dishes across every cuisine.
Origin
year-round
Season
Easy
Difficulty
spices
Category
Flavor Profile
Storage Tips
Store whole onions in a cool, dry place for 2–3 months; once cut, refrigerate and use within 3 days.
Photo Gallery
How to Cook with Onion
Recipes, pairings, substitutes, and professional tips
Cooking Tips
Caramelize onions low and slow (45–60 minutes) for maximum sweetness; use a cold pan and salt to draw out moisture faster.
Best Pairings
garlictomatoolive oilthymebay leafvinegar
Substitutes
Shallot (milder), leek (gentler), green onion, or onion powder (1 tsp per medium onion)
Nutrition & Health Benefits
The nutritional profile and health properties of Onion
Nutrition Highlights
calories
40 kcal per 100g
key_nutrients
Quercetin, vitamin C, B6, folate, fiber, sulfur compounds
Quick Facts
Categoryspices
Origin
Seasonyear-round
DifficultyEasy
Health Benefits
Quercetin and sulfur compounds reduce inflammation; prebiotic fiber supports gut microbiome; may lower blood pressure and cholesterol.
Onion Photos
6 photos showcasing Onion in its many forms
🌿
Onion
spices
Origin
Seasonyear-round
DifficultyEasy
Flavor Notes
Shop This Ingredient
Find premium Onion in our store
Pairs Well With
garlictomatoolive oilthymebay leafvinegar
Explore More Ingredients
Discover the stories, origins, and culinary secrets behind the world's most fascinating ingredients.