how many grams in a tablespoon of onions?

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things people ask

• How much onion is one tablespoon?
  About 8.9 g of finely chopped raw onion. In practical terms, that's a heaped teaspoon-and-a-half or roughly the amount you get from a thin half-slice of a medium onion, minced. Salsa recipes that scale per serving often spec onion by tablespoon — 1-2 tablespoons per cup of diced tomato keeps the bite from overwhelming the fruit.
• Can I substitute dried minced onion tablespoon-for-tablespoon?
  No. Dried minced onion is concentrated — 1 tablespoon dried equals roughly 3 tablespoons fresh chopped, and it weighs only about 6 g per tablespoon since it's dehydrated. For dressings and dips, rehydrate the dried onion in a teaspoon of water or vinegar first, otherwise it pulls moisture from the dressing and reads as gritty on the tongue.
• Why do burger and meatball recipes use tablespoons for onion?
  At the tablespoon scale you're seasoning the meat without flooding it with water. One tablespoon of grated or microplaned onion (8-9 g) per pound of ground meat adds onion flavor and a little moisture without making the patty fall apart on the grill. Larger amounts of chopped onion need to be sweated first or the burger steams instead of searing.

related conversions

• Onions: cups to grams
• Onions: teaspoons to grams
• Onions guide