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onion

ProducePeak season varies by region and harvest timing; in the Northern Hemisphere, onions are harvested June through September, with storage extending availability year-round. Certain regions practice spring harvesting of green/scallion onions, while mature bulbs remain available throughout the year in most markets.

Onions are a good source of vitamin C, dietary fiber, and prebiotic compounds (inulin). They contain quercetin and other polyphenolic antioxidants, particularly concentrated in the outer layers and red varieties.

About

The onion (Allium cepa) is a bulbous vegetable belonging to the amaryllidaceae family, native to the highlands of Central Asia. The edible bulb consists of concentric layers of modified leaves containing sulfurous compounds responsible for the characteristic pungent aroma and tear-inducing properties when cut. Common varieties include yellow (sweet and mellow), red (slightly sweeter with mild peppery notes), and white onions (sharper, more pungent), each offering distinct flavor profiles and textural qualities. The plant's flavor compounds transform dramatically with cooking—sulphur-containing compounds break down into sweet, caramelized notes through the Maillard reaction.

Yellow onions are the most versatile all-purpose variety in European and North American cuisines, while red onions are preferred for raw preparations due to their milder flavor and visual appeal. Pearl onions and cipollini represent smaller, sweeter cultivars used for specific applications.

Culinary Uses

Onions function as a foundational aromatic base in countless cuisines worldwide. They are sautéed as a primary component in mirepoix (French), soffritto (Italian), and holy trinity preparations (Louisiana Creole), forming the flavor foundation for stocks, soups, stews, and sauces. Caramelized onions develop deep, sweet complexity through prolonged cooking and appear in French onion soup, as a burger topping, and in numerous savory tarts.

Raw onions provide sharp, pungent flavor to fresh salsas, slaws, pickles, and salads. Grilled or roasted onions become tender and develop subtle sweetness, complementing grilled meats and vegetables. Creamed onions, onion relishes, and crispy fried onions represent further preparations across global culinary traditions.

Used In

Recipes Using onion (2,755)

RCI-RC.004.0277.001

Spanish Rice II

Contributed by World Recipes Y-Group This Y-group is

RCI-RC.006.0122.001

Spanish Rice with Bacon

Contributed by Jenn B aka Mom2Sam and Tiny at

RCI-RC.001.0210.001

Spanish Rice with Ham

3-4 servings Spanish Rice with Ham

RCI-MT.004.0752.001

Spanish Saffron Chicken

Spanish Saffron Chicken from the Recidemia collection

RCI-MT.005.0282.001

Spanish Taverns

I always called these sloppy joes and had never heard them called taverns until my daughter-in-law called them that. I guess it just depends on what part of the country you are from. We have garage sales here and she calls them rummages.

RCI-VG.004.1290.001

Speckled soup

Speckled soup from the Recidemia collection

RCI-MT.003.0091.001

Spice Braised Chicken with Dates and Almonds

Spice Braised Chicken with Dates and Almonds from the Recidemia collection

RCI-VG.004.1293.001

Spiced Coconut Sweet Potato

This deliciously spicy and heavy Burmese vegetarian dish is very easy to prepare and cook. Makes 4 servings.

RCI-VG.004.1294.001

Spiced Dhal Soup

Spiced Dhal Soup from the Recidemia collection

RCI-SP.003.0640.001

Spiced Italian Chicken Soup

Spiced Italian Chicken Soup from the Recidemia collection

RCI-SP.002.0203.002

Spiced Pumpkin Soup

Spiced Pumpkin Soup from the Recidemia collection

RCI-SP.002.0203.001

Spiced Pumpkin Soup

Soups

RCI-RC.001.0212.001

Spiced rice pilaf

Spiced rice pilaf from the Recidemia collection

RCI-VG.004.1295.001

Spiced Sweet Potato and Rutabaga Gratin

Spiced Sweet Potato and Rutabaga Gratin from the Recidemia collection

RCI-VG.004.1296.001

Spicey Spanish Marinated Mushrooms

Makes 6-7 servings

RCI-SP.004.0281.001

Spicy Basque Chicken

Spicy Basque Chicken from the Public Health Cookbook by the Seattle & King County Department of Public Health—original source of recipe, public domain government resource Cook Time: About 40 minutes Serves: 4

RCI-VG.004.1298.001

Spicy Black and Red Bean Soup

Spicy Black and Red Bean Soup from the Recidemia collection

RCI-SP.003.0642.001

Spicy Black Bean Chili

Contributed by Jenn b aka Mom2sam and Tiny at World Re

RCI-SC.004.0039.001

Spicy Cajun Pasta Sauce

Spicy Cajun Pasta Sauce from the Recidemia collection

RCI-SP.004.0282.002

Spicy Chicken Stew

Tired of the same old stews? This will have your taste buds jumping right off your tongue!

RCI-SP.004.0282.001

Spicy Chicken Stew

Tired of the same old stews? This will have your taste buds jumping right off your tongue!

RCI-VG.004.1305.001

Spicy Collard Greens

Spicy Collard Greens from the Recidemia collection

RCI-SC.005.0162.001

Spicy Green Sauce

Spicy Green Sauce from the Recidemia collection

RCI-SP.002.0204.001

Spicy, Homestyle Cream of Cauliflower Soup

Spicy, Homestyle Cream of Cauliflower Soup from the Recidemia collection

RCI-MT.004.0763.001

Spicy Korean Chicken

300px| Spicy Korean Chicken Preparation: 35 minutes. This recipe is for 4 servings.

RCI-VG.004.1310.001

Spicy Lentils

Spicy Lentils from the Recidemia collection

RCI-SP.003.0646.001

Spicy Peanut Soup

If you eat soup a lot, it's good to have something unusual to pull out every once in a while. This soup is spicy and nutty. The recipe is a mix of Ghanan Groundnut and spicy soup.

RCI-SP.003.0647.001

Spicy Potato and Pea Soup

Spicy Potato and Pea Soup from the Public Health Cookbook -- original source of recipe, government resource licensed in the public domain : 40 minutes : 4

RCI-VG.004.1312.001

Spicy Rice and Bean Stir-fry

Spicy Rice & Bean Stirfry Cook Time: About 25 minutes Serves: 4

RCI-SF.005.0062.001

Spicy Seafood Stew

: 4

RCI-SP.002.0205.001

Spicy Southwestern Chowder

Makes 6 servings

RCI-SN.002.0275.001

Spicy Veggie Cakes

Spicy Veggie Cakes from the Recidemia collection

RCI-VG.004.1315.001

Spinach and Brown Rice Casserole

Spinach and Brown Rice Casserole from the Recidemia collection

RCI-MT.004.0765.001

Spinach and Chicken Skillet

Contributed by Jenn B aka Mom2Sam and Tiny at

RCI-EG.003.0138.001

Spinach and Egg Casserole

Makes 6 servings

RCI-VG.004.1318.001

Spinach Cakes

Spinach Canned by the US Department of Agriculture, public domain government resource—original source of recipe

RCI-BR.007.0117.001

Spinach Chicken and Mushroom Strudel

Spinach Chicken and Mushroom Strudel from the Recidemia collection

RCI-SN.002.0276.001

Spinach-Leek Latkes

Makes 10-12

RCI-VG.004.1320.001

Spinach Potatoes

Spinach Potatoes from the Recidemia collection

RCI-EG.003.0139.001

Spinach Rice Bake

Makes 6 servings.

RCI-SP.005.0238.001

Spinach Stew with Lamb

spinach Stew with Lamb

RCI-VG.004.1322.001

Spinach with Dill

Spinach with Dill from the Recidemia collection

RCI-SP.003.0649.001

Split Pea Passion Soup

Split Pea Passion Soup from the Recidemia collection

RCI-SP.003.0650.001

Split Pea Soup with Onion and Rice or Potato

To make pea soup, you need split peas, water (or stock, or course), and croutons. Everything else is a luxury. Some of those luxuries are detailed in the variations, but you can combine them as you like.

RCI-MT.005.0286.001

Spoon Meat Loaf

Contributed by Catsrecipes Y-Group * Source: Seems Like

RCI-SP.003.0651.001

Spring Vegetable Soup with Matzo Balls

Spring Vegetable Soup with Matzo Balls from the Recidemia collection

RCI-MT.004.0766.001

Square Deluxe

Purchased from the Watson Estate in McKinney, Texas in 1991. Dated 1944. I can’t even imagine making this recipe.

RCI-SP.002.0210.001

Squash Soup

Squash Soup from the Recidemia collection

RCI-SP.002.0212.001

Squashsuppe

This gives a nice and wholesome soup, and it is for the whole family.

RCI-SF.005.0063.001

Squid and Mango Salad

Squid and Mango Salad from the Recidemia collection