each large green

The egg (plural: eggs) is the reproductive body produced by female chickens (Gallus gallus domesticus) and consists of a hard calcium carbonate shell encasing albumen (egg white) and yolk. Eggs are among the most versatile and nutrient-dense foods in culinary practice, with a mild, neutral flavor that adapts to both sweet and savory applications. The large grade, as standardized by the USDA, weighs approximately 2 ounces (56-63 grams). Eggs vary in shell color—white, brown, or speckled—depending on hen breed, but shell color has no bearing on nutritional content, flavor, or cooking performance. The yolk, rich in fat and emulsifiers, ranges from pale yellow to deep orange depending on the hen's diet; the albumen comprises approximately 60% of the egg's weight and consists primarily of water and proteins.

Eggs from heritage and specialty breeds, as well as pastured or omega-3-enriched varieties, command premium prices and may offer slightly different nutritional profiles, though differences are marginal in culinary applications.

Eggs function as a primary protein source and essential binding, leavening, and emulsifying agent across virtually all culinary traditions. They are prepared by cooking methods including boiling, poaching, frying, scrambling, and baking; served as standalone dishes or incorporated into sauces (hollandaise, mayonnaise), baked goods, custards, and pasta. In Asian cuisines, eggs are preserved through salting or century-egg (pídàn) techniques. They are foundational to French cooking, appearing in omelets, soufflés, and myriad sauces. Eggs are also used raw in preparations such as Caesar dressing and tiramisu, though food safety protocols recommend pasteurized eggs for vulnerable populations. The yolk and white serve distinct culinary functions: yolks enrich and emulsify; whites provide structure and aeration in meringues and foam preparations.