Regular size = 46 grams (1.62 ounces), approximately 24 tsp (½ cup), the size of a standard spice jar.
Onion is used in every cuisine in the world for its unique pungency and bite when used raw, or its sweet warmth when cooked. Much like its cousin garlic, it is impossible to list all the dishes that typically use onion – it is the basic ingredient to nearly any kind of sauce, soup, stew, dressing, marinade, or roast that you can imagine. Minced onion is a convenient ingredient because its levels of flavor and aroma are consistent and easily controlled by the cook, and is particularly useful in marinades, dressings, dips, savory baking, chilis and curries, and meat rubs for roasting, grilling, or broiling.
Protip: minced onion can in most recipes as a substitute for minced or chopped fresh onion at a ratio of 3 for 1 — i.e., if the recipe calls for 3 tsp of fresh, use 1 tsp of dried. If you’re super-fussy you can even soak the onion flakes in cold water for 3-5 minutes before using.