Egg Cooking
Egg cooking involves applying heat to transform proteins and fats, creating diverse textures and flavors. The proteins in egg whites denature at approximately 60–65°C, while yolk proteins denature at higher temperatures around 65–70°C. This temperature differential allows cooks to achieve varied results, from soft runny yolks to fully set whites and yolks. Success depends on controlling three primary variables: temperature, duration, and the addition of fats or liquids.
Common Cooking Methods
Boiling submerges eggs in hot water, with timing determining doneness from soft-boiled (runny yolk) to hard-boiled (fully set yolk). Frying cooks eggs in fat over direct heat, creating crispy edges and variable yolk firmness. Scrambling involves whisking eggs and stirring continuously over medium heat, breaking the cooked portions into small curds; texture depends on heat level and the addition of dairy or butter. Poaching gently simmers shelled eggs in water, producing a set white with a runny yolk. Baking involves cooking eggs in an oven, often as part of dishes like frittatas or shirred eggs.
Texture Development
Scrambled egg texture is particularly sensitive to cooking conditions. Low heat produces creamy, large curds, while high heat creates small, firm curds. Adding cream, milk, or butter slows protein coagulation and prevents overcooking. Stirring frequency and timing of heat removal control final curd size and moisture. Overcooking causes proteins to contract excessively, squeezing out moisture and creating a rubbery texture.